Poly(N-isopropylacrylamide) average Mn 85,000 | PNIPAM
Poly(N-isopropylacrylamide) average M n 85,000 Synonym: NIPAM polymer, PNIPAM, PolyNIPAM, Polyacrylamide, polyNIPAM CAS Number 25189-55-3. Linear Formula CH 3 (C 6 H 11 NO) n CH 3. MDL number MFCD00284282. NACRES NA.23
Novel interpenetrating polymer networks (IPNs) were synthesized from N-isopropylacrylamide (NIPAM) and polysiloxanes containing a urea or thiourea side group, in addition to the silanol residue, through two reactions, such as the radical gelation of NIPAM and the condensation of silanols to form a siloxane linkage. The obtained IPNs showed a typical temperature-responsive volume change in ...
Poly(N-isopropylacrylamide)
Poly(N-isopropylacrylamide) (variously abbreviated PNIPA, PNIPAAm, NIPA, PNIPAA or PNIPAm) is a temperature-responsive polymer that was first synthesized in the 1950s.It can be synthesized from N-isopropylacrylamide which is commercially available.It is synthesized via free-radical polymerization and is readily functionalized making it useful in a variety of applications.
The last decade has seen the publication of hundreds of papers involving poly(N-isopropylacrylamide), (PNIPAM) as homopolymers and as constituents of copolymers, gels, microgels and surface layers. This interest is driven by the famous lower critical solution temperature (LCST) behavior, first described by Heskins and Guillet [1] , where
Poly(N‐isopropylacrylamide) Nanoparticle‐Incorporated
Summary: Novel temperature‐responsive poly(N‐isopropylacrylamide) (PNIPAAm) nanoparticle‐containing PNIPAAm hydrogels were prepared by radical polymerization.In comparison with conventional PNIPAAm hydrogels, the PNIPAAm gels thus prepared exhibit much faster response rates as the temperature is raised above the lower critical solution temperature.
Poly(N-isopropylacrylamide), carboxylic acid terminated average M n 2,000 Synonym: NIPAM polymer, PNIPAM-COOH, Polyacrylamide, functionalized polyNIPAM, functionalized polyacrylamide, polyNIPAM Linear Formula (C 6 H 11 NO) n SCH 2 CH 2 CO 2 H . NACRES NA.23
Elastic Properties of Poly(N-isopropylacrylamide) and Poly
Thermoresponsive Poly(N-isopropylacrylamide) Copolymers: Contact Angles and Surface Energies of Polymer Films. Langmuir 2004 , 20 (23) , 10138-10145. DOI: 10.1021/la0487996.
Transfer printing gold nanoparticle arrays by tuning the surface hydrophilicity of thermo-responsive poly N-isopropylacrylamide (pNIPAAm). Nanoscale 2017, 9 (9) , 2969-2973. DOI: 10.1039/C6NR09396E. Muhammad Abdul Haq, Yunlan Su, Dujin Wang. Mechanical properties of PNIPAM based hydrogels: A review.
Poly(N-isopropylacrylamide) (PNIPAM) is never hydrophobic
The last decade has seen the publication of hundreds of papers involving poly(N-isopropylacrylamide), (PNIPAM) as homopolymers and as constituents of copolymers, gels, microgels and surface layers. This interest is driven by the famous lower critical solution temperature (LCST) behavior, first described by Heskins and Guillet [1] , where
A photothermally sensitive poly(N ‐isopropylacrylamide)/graphene oxide (PNIPAM/GO) nanocomposite hydrogel can be synthesized by in situ γ‐irradiation‐assisted polymerization of an aqueous solution of N ‐isopropylacrylamide monomer in the presence of graphene oxide (GO). The colors and phase‐transition temperatures of the PNIPAM/GO
Poly(N-isopropylacrylamide) Microgels under Alcoholic
Poly(N-isopropylacrylamide) (PNIPAM) microgel is a smart polymer that shows a volume phase transition temperature (VPTT) at around 32 °C in aqueous solutions, above which it collapses. In this work, combining experiments and molecular simulations, it is shown that PNIPAM microgels do not always exhibit a collapsed structure above the VPTT.
Summary. The hydrophobic interactions between poly(N-isopropylacrylamide), PNIPAM, and hydrophobically modified polyacrylamide, HMPAM, have been investigated by means of the polymer solvent viscometry method in dilute solutions.When HMPAM aqueous solution is used as a solvent, a divergence from linearity between the reduced viscosities of PNIPAM (as a solute) and C PNIPAM is observed.
- What are boiler water treatment products?
- Boiler water treatment products incorporate oxygen scavengers, and alkalinity boosters for corrosion inhibition, and anti-scalants to prevent concrete-style scale build-up in boilers. Addition of boiler chemicals minimizes or even eliminates corrosion and scaling inside a boiler and significantly prolongs its lifetime.
- What is indion ® specialty water treatment?
- Our INDION ® Specialty Water Treatment Programme includes cooling water treatment, boiler water treatment, fireside treatment, coagulants, flocculants, antiscalants, membrane cleaning chemicals and water testing kits. We also offer a range of INDION ® speciality chemicals for sugar, paper, petro-refinery, mining and other processes.
- What are industrial and process water treatment additives?
- Our high performance industrial and process water treatment additives have been specifically formulated to effectively treat boilers, cooling towers, and chilling water systems.
- What are boiler water treatment programmes?
- We offer a wide range of boiler water treatment programmes for low, medium, and high-pressure boilers to prevent deposits and corrosion in pre-boiler, boiler, and post-boiler systems. We offer a broad range of environmentally safe treatment programmes for open recirculating cooling water systems.
