Citation: DU Ying, HAN Xiaozu, LIU Wenzhong. STUDY ON CASTOR OIL POLYURETHANE/POLY (METHYL METHACRYLATE) AB CROSSLINKED POLYMERS*[J]. Chinese Journal of Polymer Science, ;1991, 9(1): 31-38. shu

STUDY ON CASTOR OIL POLYURETHANE/POLY (METHYL METHACRYLATE) AB CROSSLINKED POLYMERS*

Received Date: 6 October 1989

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 crosslink density of the ABCP but Tg value by component.
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