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acidic pH values. These polymers can be designed with many different architectures for different applications. Key uses of pH sensitive polymers are controlled
PH-sensitive_polymers
Type of material
Smart polymers, stimuli-responsive polymers or functional polymers are high-performance polymers that change according to the environment they are in.
Smart_polymer
Polymer showing drastic changes in physical properties with temperature
Temperature-responsive polymers or thermoresponsive polymers are polymers that exhibit drastic and discontinuous changes in their physical properties with
Temperature-responsive polymer
Temperature-responsive_polymer
Polymer responsive to electric fields
Examples are electrostrictive polymers and dielectric elastomers. Ferroelectric polymers are a group of crystalline polar polymers that are also ferroelectric
Electroactive_polymer
Light-sensitive material used in making electronics
(2007), Mark, James E. (ed.), "Properties of Photoresist Polymers", Physical Properties of Polymers Handbook, New York, NY: Springer New York, pp. 965–979
Photoresist
Material that can be externally controlled
Temperature-responsive polymers are materials that changes in response to temperature. pH-sensitive polymers are materials that change in volume when the pH of the surrounding
Smart_material
Chemical compound
temperatures, these polymers can be dissolved in water at room temperature and administered into body. However, upon the administration, these polymers phase-separate
Poly(N-isopropylacrylamide)
Cancer treatment
response to the pH change. Common pH-sensitive structures include chemical bonds that hydrolyze or break in acidic environments, polymers that change their
PH-responsive tumor-targeted drug delivery
PH-responsive_tumor-targeted_drug_delivery
Phenomenon of attracting and holding water molecules
plastics, e. g. nylon, are hygroscopic while others are not. Many engineering polymers are hygroscopic, including nylon, ABS, polycarbonate, cellulose, carboxymethyl
Hygroscopy
Photoconductive polymers absorb electromagnetic radiation and produce an increase of electrical conductivity. Photoconductive polymers have been used in
Photoconductive_polymer
Reversible transition in amorphous materials
the mixing of the individual polymers at a molecular level. While miscible polymers mix favorably, immiscible polymers remain separate within the blend
Glass_transition
Polymeric arrays of repeating units connected by non-covalent bonds
Supramolecular polymers are a subset of polymers where the monomeric units are connected by reversible and highly directional secondary interactions–that
Supramolecular_polymer
Type of hydrogel
more polymer chains. Both chemical and physical crosslinking exists. In addition, both natural polymers such as proteins or synthetic polymers with a
Self-healing_hydrogels
Spontaneous oxidation by oxygen at normal temperature
S2CID 225243217. David, C. (1975). "Chapter 4 Oxidative Degradation of Polymers". Degradation of polymers. Amsterdam: Elsevier Scientific Pub. Co. pp. 425–538. ISBN 978-0-444-41155-6
Autoxidation
Homogeneous mixture containing dissolved polymers
Polymer solutions are solutions containing dissolved polymers. These may exist as liquid solutions (e.g. in aqueous solution), or as solid solutions (e
Polymer_solution
Soft water-rich polymer gel
of polymeric materials, which can be divided broadly into two categories according to their origin: natural or synthetic polymers. Natural polymers for
Hydrogel
Chemical compound
range of pH. In addition, AMPS is absorbing water readily and also imparts enhanced water absorption and transport characteristics to polymers. Solubility:
2-Acrylamido-2-methylpropane sulfonic acid
2-Acrylamido-2-methylpropane_sulfonic_acid
Canadian polymer scientist
Elizabeth Rachel Gillies is a Canadian polymer scientist known for her development of smart polymers whose degradation can be triggered by environmental
Elizabeth_R._Gillies
Polymer composed of a chain of organic units joined by carbamate (urethane) links
and PU) is a class of polymers composed of organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene
Polyurethane
Chemical compound
of organic polymers with the formula (CH2CHCO2CH3)n. It is a synthetic acrylate polymer derived from methyl acrylate monomer. The polymers are colorless
Poly(methyl_acrylate)
Chemical compound
olefin polymers were historically referred to as COC but are now recognized as distinct classes of polymers formed from different polymerization processes
Cyclic_olefin_polymer
Polymer with synthetic molecular receptor
polymerization of monomers in the presence of a template molecule that is extracted afterwards, leaving behind complementary cavities. These polymers
Molecularly_imprinted_polymer
Type of silicone material
000 are very useful in pressure-sensitive adhesives, silicone rubbers, coatings, and additives. Polysiloxane polymers with reactive side group functionality
Silicone_resin
Polysaccharide from crustacean shells
"Contact time- and pH-dependent adhesion and cohesion of low molecular weight chitosan coated surfaces". Carbohydrate Polymers. 117 (6): 887–894. doi:10
Chitosan
Polymerization reaction among insoluble monomers in a solution
compressing these chains. Emulsion polymerization is used to make several commercially important polymers. Many of these polymers are used as solid materials
Emulsion_polymerization
Process of browning of sugar
flavor and brown color. The brown colors are produced by three groups of polymers: caramelans (C24H36O18), caramelens (C36H50O25), and caramelins (C125H188O80)
Caramelization
Non-metallic material used to bond various materials together
Leichner C, Jelkmann M, Bernkop-Schnürch A (2019). "Thiolated polymers: Bioinspired polymers utilizing one of the most important bridging structures in nature"
Adhesive
Agents that emit light after excitation by light
proprietary, often perform better, being more photostable, brighter, or less pH-sensitive than traditional dyes with comparable excitation and emission. The fluorophore
Fluorophore
Chemical science associated with pressure-sensitive adhesives
adhesive and backing increasing the bond. Pressure sensitive adhesives are viscoelastic polymers with their rheology tuned to the desired bonding and
Chemistry of pressure-sensitive adhesives
Chemistry_of_pressure-sensitive_adhesives
Growth of cracks in a corrosive environment
with metals, attack is confined to specific polymers and particular chemicals. Thus polycarbonate is sensitive to attack by alkalis, but not by acids. On
Stress_corrosion_cracking
American chemist
1973, she joined Dow Chemical's Designed Polymers Research Division, again working with latex, to find polymers that could improve latex. She was subsequently
Bettye_Washington_Greene
Organic polymer made of the repeating unit [C2H2]
doped polymers as easily processable and lightweight "plastic metals". Despite the promise of this polymer in the field of conductive polymers, many of
Polyacetylene
Chemical compound
(co)polymers as the most frequently occurring class of water-soluble polymers in these products, accounting for roughly half of all identified polymers by
Polyethylene_glycol
Brittle failure of thermoplastic polymers
amorphous polymers is proposed by Kramer. According to his theory, the formation of internal surfaces in polymers is facilitated by polymeric surface tension
Environmental_stress_cracking
Research of materials
their purpose. Polymers are chemical compounds made up of a large number of identical components linked together like chains. Polymers are the raw materials
Materials_science
Diode that emits light from an organic compound
though the polymer used had 2 limitations; low conductivity and the difficulty of injecting electrons. Later development of conjugated polymers would allow
OLED
Targeted drug delivery systems
based on the pH of the environment. Systems used with pH-responsive polymers include implantable hydrogels and micro- and nanoparticles. pH-responsive drug
Stimuli-responsive drug delivery systems
Stimuli-responsive_drug_delivery_systems
Polymer-based, crosslinked hydrogel particle
A nanogel is a polymer-based, crosslinked hydrogel particle on the sub-micron scale. These complex networks of polymers present a unique opportunity in
Nanogel
Class of inorganic polymers
Linear polymers have the formula (N=PR1R2)n, where R1 and R2 are organic (see graphic). Other architectures are cyclolinear and cyclomatrix polymers in which
Polyphosphazene
Solid conductive electrolyte
conducting polymers, which is nearly comparable with metallic conductors, only starts when the polymers are doped oxidatively or reductively. A polymer electrolyte
Polymer_capacitor
Type of photovoltaic
efficiency for polymers. For HXS-1/PCBM solar cells, the effect was correlated with charge generation, transport and shelf-stability. Other polymers such as
Organic_solar_cell
Drug delivery method
Reduction-sensitive nanoparticles (RSNP) consist of nanocarriers that are chemically responsive to reduction. Drug delivery systems using RSNP can be
Reduction-sensitive nanoparticles
Reduction-sensitive_nanoparticles
Chemical reaction that produces polymers
RAFT polymerization can be used to design polymers of complex architectures, such as linear block copolymers, comb-like, star, brush polymers, dendrimers
Reversible addition−fragmentation chain-transfer polymerization
Reversible_addition−fragmentation_chain-transfer_polymerization
Chemical compound
chains (n < 100) are more water sensitive and less thermally stable than longer chains (n > 1000), but short polymer chains (e.g. pyro-, tripoly-, and
Ammonium_polyphosphate
polymers used in polymer-drug conjugates can be degraded through enzymatic activity and acidity. Polymers are now being synthesized to be sensitive to
Polymer-drug_conjugates
Chemical compound
anionic polymer. PMAA can act as a polyelectrolyte and has the ability to absorb and retain water. These properties are strongly affected by the pH and therefore
Poly(methacrylic_acid)
Medical dressing based on hydrogels
synthesized from polymers such as collagen, gelatin, kappa-carrageenan, and fibrin. Synthetic hydrogel dressings may be derived from synthetic polymers such as
Hydrogel_dressing
Type of transistor
polymers are more commonly used because n-type materials usually have problems with stability and performance. Injected electrons in n-type polymers can
Organic electrochemical transistor
Organic_electrochemical_transistor
Substances that can repair themselves
initially used to make the polymer. During the last few decades, two types of reversible polymers have been studied: (i) polymers where the pendant groups
Self-healing_material
Trails created by swift heavy ions penetrating through solids
radiation sensitivity: Polymers have high radiation sensitivity as compared to glasses and ionic crystals. The radiation effect in polymers is caused by the
Ion_track
Mechanism that delivers a drug with a delay after its administration
cross-linked water-insoluble polymers that contain ionisable functional groups that form a repeating pattern of polymers, creating a polymer chain. The drug is
Modified-release_dosage
Property of materials with both viscous and elastic characteristics under deformation
thermodynamic theory of polymer elasticity. Some examples of viscoelastic materials are amorphous polymers, semicrystalline polymers, biopolymers, metals
Viscoelasticity
African-American polymer chemist
Articles Formed Therefrom", issued 9/6/11, U.S. Patent No. 8,013,061 "pH-Sensitive Methacrylic Copolymers and the Production Thereof", issued 1/07, U.S
Valerie_Ashby
Intermolecular attraction between a hydrogen donor-and-acceptor pair
polymers sensitive to humidity levels in the atmosphere because water molecules can diffuse into the surface and disrupt the network. Some polymers are
Hydrogen_bond
Materials and devices mimicking natural muscles
major groups based on their actuation mechanism. Electroactive polymers (EAPs) are polymers that can be actuated through the application of electric fields
Artificial_muscle
Chemical compound
RhH(PPh3)3(CO). Polymeric analogues of PPh3 are known whereby polystyrene is modified with PPh2 groups at the para position. Such polymers can be employed
Triphenylphosphine
molecular weight of the polymers can be controlled by the molar ratio of the reactants. The addition of triols leads to crosslinked polymers, whereas the crosslinking
Polyorthoester
anticancer drugs. Polymer. 2012;53(16):3485-3497. Wu H, Zhua L, Torchilin V (2013). "pH-sensitive poly(histidine)-PEG/DSPE-PEG co-polymer micelles for cytosolic
Nanocarrier
Chemist
crystalline materials, polymeric non-linear optical materials, and novel photoresist materials. Frechet, J. M. J. Ito, H. Willson, C. G. Sensitive Deep UV Resist
C._Grant_Willson
Chemical compound
variety of methods to yield PASA hydrogels. The resulting hydrogels are pH-sensitive such that under acidic conditions, they shrink, while the swelling capacity
Polyaspartic_acid
French-American chemist
work on polymers including polymer-supported chemistry, chemically amplified photoresists, dendrimers, macroporous separation media, and polymers for therapeutics
Jean_Fréchet
Converter that measures a physical quantity and converts it into a signal
PIR sensor or touch sensor are used in everyday objects such as touch-sensitive elevator buttons (tactile sensor) and lamps which dim or brighten by touching
Sensor
(Center for Applied Research on Polymers and Composites presently named Center for Research on High Performance Polymer and Composite Systems). Pierre
Pierre_Carreau
Professor of Polymer Chemistry and Colloid Chemistry at the University of Sheffield
radical-polymerization (ATRP) his laboratory synthesises a wide range of polymers. His research focuses on the synthesis and application of polymers – long-chain
Steven_Armes
Pakistani analytical chemist (born 1948)
synthesized a number of Schiff base polymers and has developed a new stationary phase for Gas Chromatography and sensitive Liquid Chromatography procedures
Muhammad_Yar_Khuhawar
Material whose resistance changes when a force is applied
pressure or mechanical stress is applied. They are also known as force-sensitive resistor and are sometimes referred to by the initialism FSR. The technology
Force-sensing_resistor
3D printing that changes shape according to certain stimuli
"Photo-origami—Bending and folding polymers with light". Applied Physics Letters. 100 (16): 161908. Bibcode:2012ApPhL.100p1908R. doi:10.1063/1.3700719
4D_printing
Copolymer in which the transition between different types of monomer is gradual
contrast agents. Mechanically gradient polymers Kryszewski, M (1998). "Gradient Polymers and Copolymers". Polymers for Advanced Technologies. 9 (4): 224–259
Gradient_copolymer
Type of computer monitor
"Ink-jet printing of doped polymers for organic light emitting devices". Applied Physics Letters. 72 (5): 519–521. Bibcode:1998ApPhL..72..519H. doi:10.1063/1
Flexible organic light-emitting diode
Flexible_organic_light-emitting_diode
Nanostructures of protein-polymer conjugates
disturbing polymers. Polymer streptavidin systems can also be modulated to respond to certain environmental changes such as pH. By incorporating pH responsive
Polymer-protein_hybrid
Protein in wheat and other cereals
other gluten proteins like the glutenins, which form extended networks of polymers due to disulphide bonds, gliadins are monomeric molecules in the cell,
Gliadin
Thermoresponsive polymers can be used as stationary phase in liquid chromatography. Here, the polarity of the stationary phase can be varied by temperature
Thermoresponsive polymers in chromatography
Thermoresponsive_polymers_in_chromatography
Iranian-American drug delivery research scientist
focused in recombinant polymers for drug and gene delivery, nanotoxicology of dendritic and inorganic constructs, water-soluble polymers for targeted delivery
Hamid_Ghandehari
Chemical compound
a white solid that is soluble in organic solvents. It is slightly air-sensitive, degrading in air to the phosphine oxide. It is classified as a diphosphine
1,3-Bis(diphenylphosphino)propane
1,3-Bis(diphenylphosphino)propane
Study of the chemical effects of radiation on matter
chemistry to modify polymers. Using radiation, it is possible to convert monomers to polymers, to crosslink polymers, and to break polymer chains. Both man-made
Radiation_chemistry
Chemical compound
air- and photo-sensitive solid, which is soluble in hydrocarbon solvents. The compound is a precursor to catalysts for the polymerization of olefins. X-ray
Tetrabenzylzirconium
Potential cancer treatment
(PTh) and its derivatives-based polymers are also one kind of conjugated polymers for PTT. Polythiophene-based polymers usually exhibit excellent photostability
Photothermal_therapy
Device that converts energy from one form to another
generically called actuators): Accelerometers Air flow sensors Electroactive polymers Rotary motors, linear motors Galvanometers Linear variable differential
Transducer
Natural or synthetic fibers with diameters in the nanometer range
generated from different polymers and hence have different physical properties and application potentials. Examples of natural polymers include collagen, cellulose
Nanofiber
Photochromic organic chemical compound
responsiveness. By the 1990s and 2000s, the integration of spiropyrans into polymers, nanomaterials, and biological systems had established them as key components
Spiropyran
Molecular architecture consisting of an inner space within an external frame
Most macromolecular cages that are formed through self-assembly are sensitive to pH, temperature, and solvent polarity. Metal Organic Polyhedra (MOPs)
Macromolecular_cages
Arrangement of chemical sensors
using conductive polymers in sensor arrays is that there is synthetic access of a vast library of polymers. As a result, conductive polymers are a promising
Chemical_sensor_array
Molecule with ability to reversibly switch states
external (exogenous) or internal (endogenous) stimuli, such as changes in pH, light, temperature, an electric current, a microenvironment, or in the presence
Molecular_switch
Material with changing electrical resistance according to its surroundings
Conductive polymers such as polyaniline and polypyrrole can be used as sensing materials when the target interacts directly with the polymer chain resulting
Chemiresistor
polymers including the storage modulus and loss modulus as functions of temperature. One method of increasing the mechanical properties of polymers used
Alkaline anion-exchange membrane fuel cell
Alkaline_anion-exchange_membrane_fuel_cell
Hydrocarbon compound (C22H14) made of 5 fused benzene rings
pentacene-based polymers have been synthesized via esterification of a pentacene diol monomer with bis-acid chlorides to form polymers 4a–b. Various synthetic
Pentacene
Gradual destruction of materials by chemical reaction with its environment
Corrosion can also occur in materials other than metals, such as ceramics or polymers, although, in this context, the term degradation is more common. Corrosion
Corrosion
Type of polymer used in medicine
Thiolated polymers – designated thiomers – are functional polymers used in biotechnology product development with the intention to prolong mucosal drug
Thiomer
Dipolar ion polymer
Laschewsky, André (2014-05-23). "Structures and Synthesis of Zwitterionic Polymers". Polymers. 6 (5): 1544–1601. doi:10.3390/polym6051544. ISSN 2073-4360. Woodfield
Polysulfobetaine
Chemical compound
2−CH 2−. It can be obtained by polymerization of para-xylylene H 2C=C 6H 4=CH 2. The name is also used for several polymers with the same backbone, where
Parylene
Type of solid ionic conductor electrolyte
PVDF-HFP). Bio-polymers like lignin, chitosan and cellulose are also gaining a lot of interest as standalone SPEs or blended with other polymers, on one side
Solid-state_electrolyte
(1989) degrees in the American College, Madurai, India. He was awarded his Ph.D. in organic chemistry at the University of Illinois at Urbana–Champaign
Sankaran_Thayumanavan
Aid for drilling boreholes into the ground
mud/shale interactions (calcium, potassium, salt, polymers, asphalt, glycols and oil – best for water-sensitive formations) Oil- (and synthetic-oil-) based
Drilling_fluid
American Chemist and Materials Scientist
Fluorescent Polymers" Chapter 28, pp 368–376 in Jenekhe, Samson A.; Meeting, American Chemical Society. (2005). Chromogenic Phenomena in Polymers. Washington
Timothy_M._Swager
Sensor of ion concentration in a solution
an ion-selective membrane (consisting of glass, crystalline, liquid, or polymers) selectively allows specific types of ions to travel through, or in other
Ion-selective_electrode
Non-crystalline solid
solids include glasses, metallic glasses, and certain types of plastics and polymers. The term "Amorphous" comes from the Greek a ("without"), and morphé ("shape
Amorphous_solid
Very small devices that incorporate moving components
Polymers on the other hand can be produced in huge volumes, with a great variety of material characteristics. MEMS devices can be made from polymers by
MEMS
Cell division inhibitor
disrupting microtubule polymerization, thus preventing cancerous growth. Microtubules are long, ropelike proteins, long polymers made of smaller units
Mitotic_inhibitor
FDA-approved polymers, as most pharmaceutical firms are unlikely to develop novel polymers due to cost issues. Fortunately, there are a number of such polymers available
Polymersome
Organic Polymer
by the same mechanism, twisting of the polymer backbone and disrupting conjugation, making conjugated polymers attractive as sensors that can provide
Polythiophene
PH SENSITIVE-POLYMERS
PH SENSITIVE-POLYMERS
Boy/Male
Muslim
Sensitive
Girl/Female
Indian
Sensitive
Boy/Male
Arabic, Muslim
Sensitive; Soft; Clean
Girl/Female
Tamil
Lajwanti | லாஜவநà¯à®¤à¯€
A sensitive plant
Lajwanti | லாஜவநà¯à®¤à¯€
Girl/Female
Indian, Telugu
Sensitive; Affectionate; Imaginative
Girl/Female
Hindu, Indian, Marathi, Sanskrit
Sensitive; Compassionate; Loving
Boy/Male
Indian, Sanskrit
Sensitive; Sentimental
Boy/Male
Hindu, Indian, Punjabi, Sikh, Telugu
Soft Sensitive
Girl/Female
Hindu, Indian
Sensitive
Girl/Female
Hindu
A sensitive plant
Girl/Female
British, English
Thoughtful; Sensitive
Girl/Female
Indian, Telugu
Sensitive
Girl/Female
Gaelic, German, Irish
Dark; Diminutive; Sensitive
Girl/Female
Gujarati, Hindu, Indian
Sensitive
Girl/Female
Tamil
Sensitive
Boy/Male
Arabic, Muslim
Sensitive
Girl/Female
Arabic, Muslim
Sensitive
Girl/Female
Hindu
Sensitive
Boy/Male
Muslim/Islamic
Sensitive
Girl/Female
Hindu, Indian, Marathi, Telugu
Tender; Sensitive
PH SENSITIVE-POLYMERS
PH SENSITIVE-POLYMERS
Male
Polish
 Polish form of Yiddish Lev, LEW means "lion." Compare with another form of Lew.
Boy/Male
Gujarati, Hindu, Indian, Kannada
The Sun
Boy/Male
English
Boar-friend
Girl/Female
Tamil
One who lives in heart
Boy/Male
Indian, Sanskrit
Hard to Cross
Girl/Female
Tamil
Mandakranta | மஂதாகà¯à®°à®¾à®‚தா
A Sanskrit metre
Surname or Lastname
English
English : unexplained; perhaps a variant of Tongs, itself a variant of Tong 6.Possibly an altered spelling of German Dungs, a variant of Dung.
Girl/Female
Arabic, Muslim
Determination; Firm will
Boy/Male
Hindu
Provider of immortality
Boy/Male
Hindu, Indian
Nice
PH SENSITIVE-POLYMERS
PH SENSITIVE-POLYMERS
PH SENSITIVE-POLYMERS
PH SENSITIVE-POLYMERS
PH SENSITIVE-POLYMERS
a.
Serving to affect the sense; sensible.
a.
Not sensitive; wanting sensation, or wanting acute sensibility.
a.
Capable of being impressed; susceptible; sensitive.
v. t.
Accountable; responsible; sensitive.
a.
Capable of producing seeds; ph/nogamic.
n.
A genus of leguminous plants, containing many species, and including the sensitive plants (Mimosa sensitiva, and M. pudica).
a.
Sensitive; excitable; timid.
a.
Having quick and acute sensibility, either to the action of external objects, or to impressions upon the mind and feelings; highly susceptible; easily and acutely affected.
a.
Sensitive or responsive to moral excellence.
a.
Excessively sensitive; morbidly sensitive.
n.
The genitive case.
a.
Having a capacity of being easily affected or moved; as, a sensitive thermometer; sensitive scales.
a.
Readily affected or changed by certain appropriate agents; as, silver chloride or bromide, when in contact with certain organic substances, is extremely sensitive to actinic rays.
n.
Not sensitive; not acute.
n.
An agent that sensitizes.
a.
Thick-skinned; not sensitive to ridicule.
a.
Of or pertaining to sensation; depending on sensation; as, sensitive motions; sensitive muscular motions excited by irritation.
a.
Having sense of feeling; possessing or exhibiting the capacity of receiving impressions from external objects; as, a sensitive soul.
v. t.
To render sensitive, or susceptible of being easily acted on by the actinic rays of the sun; as, sensitized paper or plate.
a.
Having sense or sensibility; sensitive.