Temperature-responsive methacrylamide polyampholytes

Abstract

The effective modulation of polymer cloud points in water is demonstrated through a series of charged, temperature-responsive methacrylamide-based polyampholytes.

Improved mechanical properties of antimicrobial poly(N-[3-(dimethylaminopropyl)] methacrylamide) hydrogels prepared by free radical polymerization in the presence of cetyltrimethylammonium bromide as a lyotropic liquid crystal template

“…DMAPMAAm as a pH-dependent hydrophilic monomer contains a tertiary amino group with a pK a of 9.2, while PDMAPMAAm is reported to be completely protonated under physiological conditions with a pK a value of 8.8. 9,39 Ritter et al reported that the PDMAPMAAm hydrogel prepared via microwave-assisted synthesis was sensitive to both temperature and pH changes and exhibited an LCST at 35 1C and pH = 14 in water due to the protonation of its tertiary amine group. 28 Fig.…”

A water-borne photo-sensitive polyimide precursor for an eco-friendly process of preparing organic thin film transistors

“…DMAPMAA has an alkylamine functional group, which provides water miscibility and acidity (p K a = 9.25). 35 Because of the acidity of TEA (p K a = 10.75), which is a representative organic base for water-based PAAS synthesis, the DMAPMAA has sufficient potential to be utilized as the organic base in the water-based synthesis of PAAS. In addition, DMAPMAA has a vinyl functional group that undergoes cross-linking via light-induced chemical reactions.…”