Cyclopolymerization of 2,6-dicarbomethoxy-1,6-heptadiene by group-transfer polymerization

A difunctional methacrylate monomer, 2,6-dicarbomethoxy-1,6-heptadiene (DCHD), was cyclopolymerized by group-transfer polymerization (GTP). The polymerization could be initiated by silyl enol ether in the presence of bifluoride or bibenzoate salt as a catalyst. "Living" cyclopolymerization...

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Bibliographic Details
Published in:Macromolecules 1991-09, Vol.24 (18), p.5006-5008
Main Authors: Kim, Yang Bae, Choi, Weon Jung, Choi, Byung Seok, Choi, Sam Kwon
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:A difunctional methacrylate monomer, 2,6-dicarbomethoxy-1,6-heptadiene (DCHD), was cyclopolymerized by group-transfer polymerization (GTP). The polymerization could be initiated by silyl enol ether in the presence of bifluoride or bibenzoate salt as a catalyst. "Living" cyclopolymerization was achieved to give a linear polymer of a cyclohexane repeat unit without any network structure. The polydispersity of poly(DCHD) was in the range of 1.23-1.28. The structure of the resulting polymer was characterized by exp 13 C NMR, exp 1 H NMR, and IR spectroscopy. Block copolymers with controlled sequence lengths were prepared from methyl methacrylate and n-butyl methacrylate. Spectra. 16 ref.--AA
ISSN:0024-9297
1520-5835
DOI:10.1021/ma00018a005