DYNAMIC MECHANICAL PROPERTIES OF THE CROSSLINKED COPOLYMER BASED ON CASTOR OIL POLYURETHANE/VINYL POLYMERS

Chinese Journal of Applied Chemistry ›› 1989, Vol. 0 ›› Issue (3): 6-9.

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DYNAMIC MECHANICAL PROPERTIES OF THE CROSSLINKED COPOLYMER BASED ON CASTOR OIL POLYURETHANE/VINYL POLYMERS

Liu Wenzhong, Liu JingJiang, Yang Huiming, Han Xiaozu, Hou Chunrong

Changchun Institute of Applied Chemistry, Academia Sinica

Received:1988-05-04 Revised:1988-10-12 Published:1989-06-10 Online:1989-06-10

Abstract

Abstract: The dynamic mechanical properties of the copolymer networks,AB-crosslinked polymers(ABCP), from a castor oil polyurethane(COPU)and poly(butyl methactylate) (PBMA) werequite different from that of IPN which have the similar composition to ABCP.In the case of COPU/PBMA ABCP,the damping peaks of the two components shift inward and over-lap each other,which reveals that the polymer system is partially compatible.However, thedamping peak of COPU/PBMA 1PN is a wide plateau.The electron micrographs show the larger domain sizes in IPN than in ABCP.The iesults indicates that the effect of chemical crosslinking on the compatibility is more notable than the physical entanglement. ABCP's from COPU/PST and COPU/PMMA are partially compatible like that of COPU/PBMA,while COPU/PMA and COPU/PBA aro completely compatible.

Key words: Castor oil, Polyurethane, AB crosslinking polymer, Compatibility

Liu Wenzhong, Liu JingJiang, Yang Huiming, Han Xiaozu, Hou Chunrong. DYNAMIC MECHANICAL PROPERTIES OF THE CROSSLINKED COPOLYMER BASED ON CASTOR OIL POLYURETHANE/VINYL POLYMERS[J]. Chinese Journal of Applied Chemistry, 1989, 0(3): 6-9.

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DYNAMIC MECHANICAL PROPERTIES OF THE CROSSLINKED COPOLYMER BASED ON CASTOR OIL POLYURETHANE/VINYL POLYMERS

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