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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.

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  • Poly(N-isopropylacrylamide)
  • Poly(N-isopropylacrylamide)
  • PNIPPA
  • Poly(N-isopropylacrylamide)
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  • Poli(N-isopropilacrilammide) (noto in letteratura con varie abbreviazioni: PNIPA, PNIPAAm, PNIPAA o PNIPAm) è un termo polimero solubile in acqua, che esibisce un a circa 32 °C. La sua formula bruta è (C6H11NO)n. Alle temperature sotto il punto d'intorbidamento il PNIPAA è idrofilo, mentre a temperature più alte la catena polimerica diviene idrofobica (effetto idrofobico) collassando in globuli o aggregati multicatena. Quindi, sopra 32 °C, le soluzioni di PNIPAA sembrano torbide e presentano una maggiore viscosità.
  • 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.
  • Le poly(N-isopropylacrylamide) (abrégé en polyNIPAM, PNIPAM ou PNIPAAm) est un polymère thermosensible qui en milieu aqueux subit une transition réversible autour de 32 °C. Sous cette température critique inférieure de solubilité (LCST, lower critical solution temperature), il est hydrophile et gonflé ; au-delà, il devient hydrophobe et se recroqueville. Il est possible d'ajuster la LCST en combinant le NIPAM à d'autres monomères, en réalisant une copolymérisation. Le comportement original du PNIPAM en fait un polymère étudié pour de nombreuses applications. En optique, on envisage des applications telles que le filtrage et le réglage de longueur d'onde. Le principal domaine d'application du PNIPAM est celui des sciences du vivant ; le polymère est souvent conjugué à des objets biologiques
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  • Poly(N-isopropylacrylamide)
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  • Poly
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