| 间同1,2-聚丁二烯的热性能研究 |
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| 引用本文： | 董兰国,宗成中,侯斌,常娜. 间同1,2-聚丁二烯的热性能研究[J]. 青岛科技大学学报(自然科学版), 2005, 26(5): 406-409 |
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| 作者姓名： | 董兰国 宗成中 侯斌 常娜 |
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| 作者单位： | 青岛科技大学,橡塑材料与工程教育部重点实验室,山东,青岛,266042;中国石化齐鲁股份有限公司,树脂研究所,山东,淄博,255400 |
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| 摘 要： | 由钴催化剂合成的间同1,2-聚丁二烯是结晶性的,熔点在120~230℃。研究发现,聚合物的DSC图中出现双重熔融峰,主要是因为结晶聚合物中存在稳定性不同的晶区,在动态扫描时聚合物晶区内部发生晶体变型、微晶优化和重组。
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| 关 键 词： | 间同聚丁二烯 结晶 熔融 热分析 |
| 文章编号： | 1672-6987(2005)05-0406-04 |
| 修稿时间： | 2004-12-17 |
Study on Thermal Properties of Syndiotactic 1,2-Polybutadiene |
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| DONG Lan-guo. Study on Thermal Properties of Syndiotactic 1,2-Polybutadiene[J]. Journal of Qingdao University of Science and Technology:Natutral Science Edition, 2005, 26(5): 406-409 |
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| Authors: | DONG Lan-guo |
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| Affiliation: | DONG Lan-guo~ |
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| Abstract: | The syndiotactic 1,2-polybutadiene synthesized by cobalt catalyst was crystalline with a m.p.of 120~230 ℃.Endotherms observed upon heating for samples isothermally crystallized from melt exhibited a double melting profile.The peak temperature of the endotherm that appeared at a lower temperature showed stronger dependence on the heating rate than that appearing at a higher temperature.The results of partial melting experiments demonstrated that the high endotherm was not affected at all by melting of only the crystals responsible for the low endotherm,indicating that the double melting behavior was due to the existence of two crystalline species with different stabilities. |
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| Keywords: | syndiotactic 1 2-polybutadiene crystal melting thermal analysis |
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