| 铁-芳烃配合物引发环氧化合物的光引发阳离子聚合 |
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| 引用本文： | 陈用烈,陈旭东,梁兆熙.铁-芳烃配合物引发环氧化合物的光引发阳离子聚合[J].影像科学与光化学,1994,12(2):140-145. |
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| 作者姓名： | 陈用烈 陈旭东 梁兆熙 |
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| 作者单位： | 1. 中山大学高分子研究所 广州 510275;2. 重庆西南师范大学化学系 |
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| 摘 要： | 以环戊二烯基异丙苯铁六氟磷酸盐为光引发剂,用等温差示扫描量热法(DSC)研究了对甲苯基缩水甘油醚(CGE)的光引发阳离子聚合的温度效应及聚合反应动力学。研究表明CGE聚合时,反应速率及最终转化率随温度变化在550℃及450℃左右有一个峰值。CGE光聚合反应速率与单体浓度的一次方成比例,其反应机理包括两个基本反应,即:引发剂光解产物与单体的配合反应以及在该配合物中单体的开环反应,而这两个反应具有相反的温度效应,升高温度有利于后者而不利于前者。
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| 关 键 词： | 铁-芳烃配合物光引发剂 环氧化合物 阳离子光聚合 动力学 |
| 收稿时间： | 1993-04-26 |
PHOTOINDUCED CATIONIC POLYMERIZATION OF EPOXIDES INITIAIED WITH IRON-ARENE COMPLEX |
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| CHEN YoNG-LIE,CHEN Xu-DONG,LIANG ZHAO-XI.PHOTOINDUCED CATIONIC POLYMERIZATION OF EPOXIDES INITIAIED WITH IRON-ARENE COMPLEX[J].Imaging Science and Photochemistry,1994,12(2):140-145. |
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| Authors: | CHEN YoNG-LIE CHEN Xu-DONG LIANG ZHAO-XI |
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| Institution: | Institute of Polymer Science, Zhongshan University, Guangzhou 510275, P. R. China |
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| Abstract: | The polymerization kinetics and temperature effect on photoinduced cationic polymerization of p-cresylglycidylether (CGE) initiated with cyclopentadienyl-cumene-iron hexaflu-orophosphate was studied using isothermal DSC method.It is shown that the polylnerization rate and ultimate conversion are the maxima at around 55℃ and 45℃, respectively.The polymerization rate of CGE is proportional to CGE concelitration. Two basic reactionsare involved in the polymerization process,i.e., the complexation of the photolytic productof photoinitiator with the monomer and the ring-opening reaction of monomer startingfrom the complex formed.The temperature effect on these two reactions is opposite,i.e.,higher temperature is favorable for the latter but disadvantageous for the former. |
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| Keywords: | iron-arene complex photoinitiator epoxide photoinduced cationicpolymerization kinetics |
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