Crystallization Behavior of the Novel LLDPE and Its Molecular Characteristics

Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (12): 2044.

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Crystallization Behavior of the Novel LLDPE and Its Molecular Characteristics

ZHAO Yong¹, YANG De-Cai¹, D. C. Bassett²

1. Polym.Phys.Lab., C1angchun Institute of APPlied Chemistry, Academia Sinica, Changchun 130022;
2. J.J.Thomson Physical Laboratory, University of Reading, Whiteknights, Reading RG6 6AF, UK

Received:1996-09-08 Online:1997-12-24 Published:1997-12-24

Abstract

Abstract: Crystallization behavior of the single-site catalysed ethylene-octene-1 copolymer(LLDPE) has been investigated.The results indicate that the distribution of branches in thenovel LLDPEis more homogeneous and regular than that in materials prepared with Ziegler-Natta catalysts.However, there is still some variability in inter-branch separation.Thework has confirmed that branches trend to be excluded from crystals formed by branchedpolyethylene, but it is dependent on branch distribution and crystallization dynamics.

Key words: Novel LLDPE, Crystallization behavior, Branch distribution

CLC Number:

O632.32

TrendMD:

ZHAO Yong, YANG De-Cai, D. C. Bassett. Crystallization Behavior of the Novel LLDPE and Its Molecular Characteristics[J]. Chem. J. Chinese Universities, 1997, 18(12): 2044.

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Crystallization Behavior of the Novel LLDPE and Its Molecular Characteristics

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