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Citation: CHEN Qing-Yong, YU Ying-Ning, NA Tian-Hai, ZHANG Hong-Fang, MO Zhi-Shen. Determination of the Crystallinity of Different Crystalline Forms of Syndiotactic Polystyrene by WAXD[J]. Chinese Journal of Applied Chemistry, ;2002, 19(9): 837-841. shu

Determination of the Crystallinity of Different Crystalline Forms of Syndiotactic Polystyrene by WAXD

1.
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Corresponding author: MO Zhi-Shen,
Received Date: 24 January 2002
Available Online: 14 May 2002
Fund Project: 国家自然科学基金重点基金(29934072) (29934072)国家重点基础研究专项经费资助(G1999064806) (G1999064806)

According to the theory of wide angle X-ray diffractometry, the graphic multi-peak resolution results of WAXD patterns of the various crystal forms of syndiotactic polystyrene(sPS)(T', T" and U' forms) were investigated. The correction coefficients of the corresponding crystalline and amorphous diffraction peaks were given and the calculation formulae of the crystallinity of sPS T', T" and U' forms were deduced. The crystallinities of some sPS samples crystallized sufficiently at different temperatures obtained from calculation using the formulae and by DSC experiments were compared to be consistent with each other.
- syndiotactic polystyrene,
- crystallinity,
- WAXD,
- polymorphism,
- DSC
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