Citation: ZHANG Xitian, HAN Xiaozu. STUDIES ON THE 13C-NMR SPECTRA OF ALTERNATING COPOLYMERS OF CONJUGATED DIENES WITH METHYL ACRYLATE*[J]. Chinese Journal of Polymer Science, ;1985, 3(3): 244-249. shu

STUDIES ON THE 13C-NMR SPECTRA OF ALTERNATING COPOLYMERS OF CONJUGATED DIENES WITH METHYL ACRYLATE*

ZHANG Xitian ,
HAN Xiaozu

Received Date: 23 April 1985

The 13C-NMR spectra of alternating copolymers of conjugated dienes, butadiene (BD), isoprene(IP) and chloroprene (CP), with methyl acrylate (MA) were studied. It is proved that they are allalternating copolymers. The BD units in Poly (BD-alt-MA) are joined to MA mainly in the form of trans 1,4-structure. The contents of trans 1,4-, cis 1,4-and 1,2-structure are 88, 7 and 5%, res-pectively. The IP and CP units in Poly(IP-alt-MA) and Poly(CP-alt-MA) exist essentially as trans1,4-configuration and connect with MA units in "head to head"arrangement predominantly,while CP-CP units present in Poly(CP-alt-MA) in a small quantity.
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