| STUDIES ON THE ~(13)C-NMR SPECTRA OF ALTERNATING COPOLYMERS OF CONJUGATED DIENES WITH METHYL ACRYLATE |
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| 作者姓名： | 张喜田 韩孝族 |
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| 作者单位： | Changchun Institute of Applied Chemistry，Academia Sinica，Changchun，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun |
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| 摘 要： | The ~(13)C-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 formof 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, whileCP-CP units present in Poly(CP-alt-MA) in a small quantity.
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| 收稿时间： | 1985-04-23 |
STUDIES ON THE 13C-NMR SPECTRA OF ALTERNATING COPOLYMERS OF CONJUGATED DIENES WITH METHYL ACRYLATE* |
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| ZHANG Xitian,HAN Xiaozu.STUDIES ON THE ~(13)C-NMR SPECTRA OF ALTERNATING COPOLYMERS OF CONJUGATED DIENES WITH METHYL ACRYLATE[J].Chinese Journal of Polymer Science,1985,0(3):244-249. |
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| Authors: | ZHANG Xitian HAN Xiaozu |
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| Institution: | Changchun Institute of Applied Chemistry; Academia Sinica; Changchun |
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| Abstract: | 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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