Studies on the Sequence Structure of Vinyl Monomer-N-phenylmaleimide Copolymers

Abstract

Abstract: The sequence structure of methyl methacrylate (MMA)-N-phenylmaleimide (PMI) and styrene (St)-PMIcopolymers was studied in detail with NMR spectroscopy. MMA PMIcopolymer was in random sequence distribution, and St-PMIcopolymer was alternating in structure. Some stereo information of MMA-PMIcopolymer could be obtained from ¹HNMR result. The sequence length obtained from the triad of copolymer by ¹³CNMR was in agreement with that calculated from the reactivity ratios. From the triad of copolymer by ¹³CNMR, the copolymer chain of MMA-PMI was proved being one order Markov chain. More suitable propagation reactions were proposed from the deviation of sequence distribution of St-PMIcopolymer.

Key words: Vinyl monomer, N-phenylmaleimide, Copolymer, Sequence structure

CLC Number:

O631

TrendMD:

SHAN Guo-Rong, WENG Zhi-Xue, HUANG Zhi-Ming, PAN Zu-Ren . Studies on the Sequence Structure of Vinyl Monomer-N-phenylmaleimide Copolymers[J]. Chem. J. Chinese Universities, 1999, 20(7): 1138.

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Studies on the Sequence Structure of Vinyl Monomer-N-phenylmaleimide Copolymers

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