| 聚1,2-丁二烯的内聚能密度和玻璃化温度 |
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| 引用本文： | 何天白,任守经,高秀峰,李斌才. 聚1,2-丁二烯的内聚能密度和玻璃化温度[J]. 高分子学报, 1982, 0(5): 321-325 |
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| 作者姓名： | 何天白 任守经 高秀峰 李斌才 |
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| 作者单位： | 中国科学院长春应用化学研究所(何天白，任守经，高秀峰)，中国科学院长春应用化学研究所(李斌才) |
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| 摘 要： | 本工作用环己烷-甲苯混合溶剂测定了不同1,2-链节含量的无定形聚1,2-丁二烯的溶解度参数,进而得到它们的内聚能密度,另外测定了它们的玻璃化温度。发现1,2-链节提高了聚1,2-丁二烯的玻璃化温度,同时稍稍降低了它们的内聚能密度。认为这是1,2-链节降低了聚1,2-丁二烯分子链柔顺性的缘故。
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| 收稿时间： | 1981-03-09 |
COHESION ENERGY DENSITY AND GLASS TRANSITION TEMPERATURE OF 1,2-POLYBUTADIENES |
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| He Tian-bai,Ken Shou-jing,Gao Xou-fong,Li Bing-chai. COHESION ENERGY DENSITY AND GLASS TRANSITION TEMPERATURE OF 1,2-POLYBUTADIENES[J]. Acta Polymerica Sinica, 1982, 0(5): 321-325 |
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| Authors: | He Tian-bai Ken Shou-jing Gao Xou-fong Li Bing-chai |
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| Affiliation: | Changchun Institute of Applied Chemistry; Academia Sinica |
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| Abstract: | Cohesion energy density of 1,2-polybutadienes with various content of 1,2-unit was obtained from solubility parameter which was measured in mixed solvents of cyclohe-xane and toluene.It was found that with increasing in the content of 1,2-unit of the polymer, its glass transition temperature increases but the cohesion energy density decreases, due to the stiffening of the molecular chains of 1,2-polybutadienes. |
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