STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD
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STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD
STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD
高分子科学(英文版)1987年5卷第1期 页码:20-25
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纸质出版:1987-03-20
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YUAN Dongwu, ZHU Shannong, YANG Xiaozhen. STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD[J]. 高分子科学(英文版), 1987,5(1):20-25.
YUAN Dongwu, ZHU Shannong, YANG Xiaozhen. STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD[J]. 1987, 5(1): 20-25.
YUAN Dongwu, ZHU Shannong, YANG Xiaozhen. STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD[J]. 高分子科学(英文版), 1987,5(1):20-25.DOI:
YUAN Dongwu, ZHU Shannong, YANG Xiaozhen. STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD[J]. 1987, 5(1): 20-25.DOI:
STUDY ON SEQUENCE STRUCTURE OF ACRYLAMIDE-ACRYLATE COPOLYMERS BY13C-NMR METHOD
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.
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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