Citation:
YUAN Dongwu, ZHU Shannong, YANG Xiaozhen. STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD[J]. Chinese Journal of Polymer Science,
1987, 5(1): 20-25.
STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD
摘要:
Triad sequence distributions in a series of P(AM/AA) with different AA% were calculated from copolymerization reactivity ratio r1 and r1 based on first order Markov statistic model, and the calculated data compared with observed ones from 13C-NMR spectra showed good agreement with each other. The sequence distribution in P(AM/AA) obtained under our experimental conditions fits in with first order Markov statistic model. A significant sequence structure difference was observed between P(AM/AA) and alkaline hydrolyzed polyacrylamide,ABA triad (acrylate unit center),AAA and AAB triads (acrylamide unit center) dominated in hydrolyzed ones.
English
STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD
Abstract:
Triad sequence distributions in a series of P(AM/AA) with different AA% were calculated from copolymerization reactivity ratio r1 and r1 based on first order Markov statistic model, and the calculated data compared with observed ones from 13C-NMR spectra showed good agreement with each other. The sequence distribution in P(AM/AA) obtained under our experimental conditions fits in with first order Markov statistic model. A significant sequence structure difference was observed between P(AM/AA) and alkaline hydrolyzed polyacrylamide,ABA triad (acrylate unit center),AAA and AAB triads (acrylamide unit center) dominated in hydrolyzed ones.
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