Citation:
Cheng Shen ZHU, Hong Jing DOU, Su Qin HE, Zhi Shen MO. Crystal Form Transition during Heating of Solvent-induced Crystalline Syndiotactic Polystyrene[J]. Chinese Chemical Letters,
;2000, 11(10): 931-932.
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The phase transition of two kinds of solvent-induced crystalline syndiotactic polystyrene (sPS), γ -sPS and δe-sPS, has been studied via WAXD and DSC. γ-sPS transform to α-sPS at 195-225℃ before melt during heating, whereas δe-sPS transform to first γ-sPS and then α-sPS at 100-200℃ and 200-215℃, respectively. The transition of δe-γ and γ-α occurs far below melting point of sPS indicates they are all solid-solid transition.
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Keywords:
- Crystal form transition,
- γ-sPS,
- δe-sPS,
- α-sPS
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