Effects of Nucleating Agents on the Crystallization and Morphology of Syndiotactic Polystyrene
碩士 === 國立成功大學 === 化學工程學系 === 88 === Nucleating agents are chosen with inorganic compounds (talc, antimony oxide, and mica), and organic compounds (na11, na21, and Al-PTBBA). The influence of various nucleating agents on the crystallization parameters of syndiotactic polystyrene is reported. Non-isot...
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ndltd-TW-088NCKU00630832015-10-13T10:57:06Z http://ndltd.ncl.edu.tw/handle/58951461995132780707 Effects of Nucleating Agents on the Crystallization and Morphology of Syndiotactic Polystyrene 成核劑對間規對位聚苯乙烯結晶行為與形態之影響 陳建明 碩士 國立成功大學 化學工程學系 88 Nucleating agents are chosen with inorganic compounds (talc, antimony oxide, and mica), and organic compounds (na11, na21, and Al-PTBBA). The influence of various nucleating agents on the crystallization parameters of syndiotactic polystyrene is reported. Non-isothermal and isothermal crystallization is investigated by differential sacnning calorimetry (DSC). It has been stated that the addition of a nucleating agent affects the crystallization rate, dimension and homogeneity of spherulitic sizes. The crystallization temperature Tc, induction time ti, the crystallization half-time t1/2, the crystallization rate constant K, and the Avrami coefficient n were measured and related to the different characteristics of the specimens. The morphology induced by the different nucleating agents by hot stage polarizing microscopy, scanning electron microscopy and wide-angle X-ray diffraction analysis. Syndiotactic polystyrene containing talc series is converted into pure or nearly pureβ(β'') modification in the isothermal and non-isothermal crystallization experiments. 郭人鳳 2000 學位論文 ; thesis 76 zh-TW |
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碩士 === 國立成功大學 === 化學工程學系 === 88 === Nucleating agents are chosen with inorganic compounds (talc, antimony oxide, and mica), and organic compounds (na11, na21, and Al-PTBBA). The influence of various nucleating agents on the crystallization parameters of syndiotactic polystyrene is reported. Non-isothermal and isothermal crystallization is investigated by differential sacnning calorimetry (DSC). It has been stated that the addition of a nucleating agent affects the crystallization rate, dimension and homogeneity of spherulitic sizes. The crystallization temperature Tc, induction time ti, the crystallization half-time t1/2, the crystallization rate constant K, and the Avrami coefficient n were measured and related to the different characteristics of the specimens. The morphology induced by the different nucleating agents by hot stage polarizing microscopy, scanning electron microscopy and wide-angle X-ray diffraction analysis. Syndiotactic polystyrene containing talc series is converted into pure or nearly pureβ(β'') modification in the isothermal and non-isothermal crystallization experiments.
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author2 |
郭人鳳 |
author_facet |
郭人鳳 陳建明 |
author |
陳建明 |
spellingShingle |
陳建明 Effects of Nucleating Agents on the Crystallization and Morphology of Syndiotactic Polystyrene |
author_sort |
陳建明 |
title |
Effects of Nucleating Agents on the Crystallization and Morphology of Syndiotactic Polystyrene |
title_short |
Effects of Nucleating Agents on the Crystallization and Morphology of Syndiotactic Polystyrene |
title_full |
Effects of Nucleating Agents on the Crystallization and Morphology of Syndiotactic Polystyrene |
title_fullStr |
Effects of Nucleating Agents on the Crystallization and Morphology of Syndiotactic Polystyrene |
title_full_unstemmed |
Effects of Nucleating Agents on the Crystallization and Morphology of Syndiotactic Polystyrene |
title_sort |
effects of nucleating agents on the crystallization and morphology of syndiotactic polystyrene |
publishDate |
2000 |
url |
http://ndltd.ncl.edu.tw/handle/58951461995132780707 |
work_keys_str_mv |
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