Electrospinning of Aqueous Solutions of Atactic Poly(N-isopropylacrylamide) with Physical Gelation.

ABSTRACT: The phase diagram of a given polymer solution is used to determine the solution's electrospinnability. We constructed a phase diagram of an aqueous solution of atactic poly(N-isopropylacrylamide) (a-PNIPAM) based on turbidity measurements and the rheological properties derived from linear viscoelasticity. Several important transition temperatures were obtained and discussed, including the onset temperature for concentration fluctuations T₁, gel temperature T_gel, and binodal temperature T_b. On heating from 15 °C, the one-phase a-PNIPAM solution underwent pronounced concentration fluctuations at temperatures above T₁. At higher temperatures, the thermal concentration fluctuations subsequently triggered the physica

SUBMITTER: Chuang YC 

PROVIDER: S-EPMC9689489 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature