| 二苯甲酮敏化的3,4-聚异戊二烯光交联反应的非环化非降解过程研究 |
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| 引用本文： | 黄骏廉,于同隐. 二苯甲酮敏化的3,4-聚异戊二烯光交联反应的非环化非降解过程研究[J]. 应用科学学报, 1988, 6(3): 260-264 |
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| 作者姓名： | 黄骏廉 于同隐 |
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| 作者单位： | 复旦大学 |
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| 摘 要： | 人们在对聚二烯烃类化合物进行研究的过程中,发现当对这些化合物加热、辐照γ射线或用化学方法处理时,它们在交联的同时,总伴随着大分子的降解和环化过程[1].为此Raven[2]、Okamoto[3]和Golub[4]等曾提出三种不同的机理进行解释.本文用IR、NMR和化学分析等方法,证明了二苯甲酮敏化的3,4-聚异戊二烯的光交联反应并不伴随着环化过程;光照前后二苯甲酮敏化的3,4-聚异戊二烯的GPC测定也证实了其分子量分布并未发生变化.因此该体系的光交联是一个非环化、非降解反应.
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| 收稿时间： | 1985-05-20 |
STUDY ON UNCYCLIZED AND UNDEGRADED PROCESS OFPHOTOCROSSLINKING REACTION OF BENZOPHENONE-SENSITIZED 3, 4-POLYISOPRENE |
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| HUANG JUNLIAN,YU TONGYIN. STUDY ON UNCYCLIZED AND UNDEGRADED PROCESS OFPHOTOCROSSLINKING REACTION OF BENZOPHENONE-SENSITIZED 3, 4-POLYISOPRENE[J]. Journal of Applied Sciences, 1988, 6(3): 260-264 |
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| Authors: | HUANG JUNLIAN YU TONGYIN |
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| Affiliation: | Institute of Material Science, Fudan University, Shanghai |
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| Abstract: | It was found that the photocrosslinking reaction of benzophenone-sensitized 3, 4-polyisoprene was an uncyclized process by means of IR, NMR and chemical analysis.The measurement of GPC proved that the molecular weight distribution of benzophenone-sensitized 3, 4-polyisoprene which was irradiated by an 80 W high pressure Hg lamp was the same as unsensitized 3, 4-polyisoprene.The conclusion therefore, is that the photocrosslinking reaction of this system was an uncyclized and undegraded process. |
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