| STUDY ON CASTOR OIL POLYURETHANE/POLY (METHYL METHACRYLATE) AB CROSSLINKED POLYMERS |
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| 作者姓名： | 杜郢 韩孝族 刘文忠 |
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| 作者单位： | Changchun Institute of Applied Chemistry，Academia Sinica，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun Institute of Applied Chemistry，Academia Sinica Changchun，Changchun，Changchun |
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| 基金项目： | Project supported by the National Natural Science Foundation of China. |
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| 摘 要： | Castor oil polyurethane/poly(methyl methacrylate) AB crosslinked polymers (ABCP) were synthesized by free radical copolymerization of MMA and vinyl-terminated castor oil polyurethane which was obtained from isocyanate-terminated castor oil polyurethane and hydroxyethyl methacrylate The mechanical properties, transition and relaxation, as well as compatibility and morphology of the ABCP were investigated by changing the component. The results show that the ABCP is a semicompatible system and the compatibility of the two components decreases with increasing content of the hard segment. The mechanical and damping properties of the ABCP are obviously superior to that of their homopolymers. The damping value is mainly controlled by crossink density of the ABCP but the T-g value by component.
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| 收稿时间： | 1989-10-06 |
STUDY ON CASTOR OIL POLYURETHANE/POLY (METHYL METHACRYLATE) AB CROSSLINKED POLYMERS* |
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| DU Ying,HAN Xiaozu,LIU Wenzhong.STUDY ON CASTOR OIL POLYURETHANE/POLY (METHYL METHACRYLATE) AB CROSSLINKED POLYMERS[J].Chinese Journal of Polymer Science,1991,0(1):31-38. |
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| Authors: | DU Ying HAN Xiaozu LIU Wenzhong |
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| Affiliation: | Changchun Institute of Applied Chemistry; Academia Sinica; Academia Sinica Changchun; Changchun |
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| Abstract: | Castor oil polyurethane/poly(methyl methacrylate) AB crosslinked polymers (ABCP) were synthesized by free radical copolymerization of MMA and vinyl-terminated castor oil polyurethane which was obtained from isocyanate-terminated castor oil polyurethane and hydroxyethyl methacrylate The mechanical properties, transition and relaxation, as well as compatibility and morphology of the ABCP were investigated by changing the component. The results show that the ABCP is a semicompatible system and the compatibility of the two components decreases with increasing content of the hard segment. The mechanical and damping properties of the ABCP are obviously superior to that of their homopolymers. The damping value is mainly controlled by crossink density of the ABCP but the T-g value by component. |
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| Keywords: | AB crosslinked polymers Castor oil polyurethane PMMA Dynamic mechanical properties Dielectrical relaxation spectrum TEM |
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