Non-Ionic Homo- and Copolymers with H-Donor and H-Acceptor Units with an UCST in Water

作者：Seuring Jan; Agarwal Seema^*

来源：Macromolecular Chemistry and Physics, 2010, 211(19): 2109-2117.

DOI：10.1002/macp.201000147

• N-acetylacrylamide
• N-acryloylglycinamide
• smart polymers
• thermoresponsive polymers
• upper critical solution temperature (UCST)

A well-studied example of a thermoresponsive polymer is PNiPAAm, which exhibits a sharp coil-to-globule transition in water at its LCST. A study relating to the missing counterpart of LCST polymers is presented: N-acryloylglycinamide (NAGA) homopolymer and copolymers from NAGA and N-acetylacrylamide (NAcAAm) that show a sharp UCST (where the sharpness depends on the composition). The polymers were synthesized by free-radical copolymerization and the copolymerization parameters were determined by the method of Kelen-Tudos. The UCST was investigated by turbidimetry, regarding the influence of the copolymer composition, the polymer concentration and the addition of electrolytes.

• 出版日期2010-10-1