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Citation: Lu Yan, Qing Chuan, Jing Xiabin, Huang Baotong. CRYSTALLINE STRUCTURE AND CRYSTALLIZATION BEHAVIOR OF LLDPE IN LLDPE/SBR BLENDS[J]. Chinese Journal of Applied Chemistry, ;1989, 6(6): 38-43. shu

CRYSTALLINE STRUCTURE AND CRYSTALLIZATION BEHAVIOR OF LLDPE IN LLDPE/SBR BLENDS

1.
Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Academia Sinica

Received Date: 26 November 1988
Available Online: 29 March 1989

DSC, SALS, SAXS, WAXD and polarizing microscopy were used to study the crystalline structrures, equilibrium melting point and crystallization kineties of LLDPE in LLDPE/SBR blends. Its unit cell parameters, crystallite size, spherulite size and crystallinity remain unchanged when LLDPE content is above 50%. Crystallite and spherulite size decrease when LLDPE content is less than 50%. The long period of LLDPE ctystallites in the blends of various compositions is larger than that of pure LLDPE and increases with increasing SBR content. This system does not show melting point depression but gives higher chain folding free energy than pure LLDPE. Based on the above experimental observations it is concluded that in this system LLDPE and SBR are not compatible in general, but show certain extent of molecular chain mixing in the amorphous region of LLDPE.
- Polyethylene,
- Styrene-butadiene rubber,
- LLDPE/SBR blend
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CRYSTALLINE STRUCTURE AND CRYSTALLIZATION BEHAVIOR OF LLDPE IN LLDPE/SBR BLENDS

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com