Synthesis of Polypropylene-graft-polycaprolactone Polymer and Its Application as Blending Compatibilizer

doi:10.3724/SP.J.1095.2014.40043

Chinese Journal of Applied Chemistry

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Synthesis of Polypropylene-graft-polycaprolactone Polymer and Its Application as Blending Compatibilizer

ZHU Jian¹, WANG Xiaoyan², LIU Jingyu², TONG Yuejin^1*, LI Yuesheng^2*

(1.School of Chemistry and Chemical Engineering,Fujian Normal University,Fuzhou 350000,China;
2.State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of
Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China)

Received:2014-02-18 Revised:2014-03-17 Published:2014-07-10 Online:2014-07-10
Contact: LI

Abstract

Abstract: Using polypropylene containing pendant hydroxyl groups as initiator and stannous octoate as catalyst, a serial of well-defined polypropylene-graft-polycaprolactone polymers was synthesized via ring opening polymerization, and the structures of the polymers were characterized by NMR, IR, DSC and WAXD. In addition, the influence of temperature and time on the grafting reaction was studied. The results show that the optimal reaction temperature is 90 ℃ and the grafting lengths can be controlled by regulating reaction time. Furthermore, the functional polypropylene were used as compatibilizer for polypropylene/nylon-6 blends, and the influence of compatibilizer on the blends was investigated by SEM. The SEM reveals that the interfacial tension and dimensions of separated phases are markedly reduced while interfacial adhesion is greatly enhanced because of the addition of the compatibilizer.

Key words: polypropylene, solution grafting, caprolactone, blending compatibilizer

CLC Number:

O631

ZHU Jian1, WANG Xiaoyan2, LIU Jingyu2, TONG Yuejin1*, LI Yuesheng2*. Synthesis of Polypropylene-graft-polycaprolactone Polymer and Its Application as Blending Compatibilizer[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2014.40043.

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Synthesis of Polypropylene-graft-polycaprolactone Polymer and Its Application as Blending Compatibilizer

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