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Citation: Zhang Hongfang, Chen Jian, Xue Xiaofu, Mo Zhishen, Chen Yu. STRUCTURES AND PROPERTIES OF THE BLENDS OF THERMOTROPIC LIQUID CRYSTALLINE ETHYLCELLULOSE AND POLYPROPYLENE[J]. Chinese Journal of Applied Chemistry, ;1993, 10(6): 35-38. shu

STRUCTURES AND PROPERTIES OF THE BLENDS OF THERMOTROPIC LIQUID CRYSTALLINE ETHYLCELLULOSE AND POLYPROPYLENE

1.
1. Laboratory of Polymer Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun;
2.
2. The Center of Analysis and Measurement, Northeast Normal University, 130022 Changchun

Received Date: 11 November 1992
Available Online: 28 April 1993
Fund Project:

Blends of thermotropic liquid crystalline ethylcellulose and polypropylene (EC/PP) were investigated by polarizing microscopy, DSC,X-ray diffractometry, rheometeric and mechanical measurements. It is found that the blends have a clear and flocky strip structure in the orientation direction. The spherules of PP were found to be damaged with the EC content in the blends. An increase of EC content in the blends led to the increase of T_c,decrease of △H_m and T_m,the nucleation ability as well as the crystallinity of the blends. It also caused reduction of crystalline size of (110) plane and increase of crystalline size of (040) plane. Blend with EC:PP=10:90 showed an increase in tensile modulus.
- ethyl cellulose,
- polypropylene,
- thermotropic liquid crystalline,
- structure
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