| 用FT—IR研究同步互穿网络形成反应动力学 |
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| 引用本文： | 贾德民,王小萍.用FT—IR研究同步互穿网络形成反应动力学[J].华南理工大学学报(自然科学版),1994,22(6):1-7. |
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| 作者姓名： | 贾德民 王小萍 |
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| 作者单位： | 华南理工大学高分子材料科学与工程系 |
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| 基金项目： | 国家自然科学基金,广东省重点学科资助 |
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| 摘 要： | 用傅立叶交换红外光谱对聚氨酯／聚（甲基丙烯酸甲酯－二甲基丙烯酸乙二醇酯）同步互穿网络（ＰＵ／ＰＭＭＡ—ＳＩＮ）的形成过程进行跟踪研究，求出该体系中两组分的形成反应动力学参数。结果表明：该ＳＩＮ中两组分网络的形成机理与单独聚合时相同，彼此在机理上互不干扰。ＭＭＡ组分对ＰＵ网络的形成动力学影响不大，但ＰＵ网络形成时的放热和粘度增加，使ＭＭＡ组分的聚合反应诱导期缩短，反应速率增加，自动加速现象显著提前．
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| 关 键 词： | 高聚物 反应动力学 同步互穿网络 红外光谱 |
FORMATION REACTION DINETICS OF SIMULTANEOUS INTERPENETRATING NETWORKS BY FT -IR SPECTROSCOPY |
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| Jia Demin, Wang Xiaoping, Luo Yuanfang, Wu Xiangdong.FORMATION REACTION DINETICS OF SIMULTANEOUS INTERPENETRATING NETWORKS BY FT -IR SPECTROSCOPY[J].Journal of South China University of Technology(Natural Science Edition),1994,22(6):1-7. |
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| Authors: | Jia Demin Wang Xiaoping Luo Yuanfang Wu Xiangdong |
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| Abstract: | The foil mation process of polyurethane / poly (methylmethacrylate-ethaylene glycol dimethacrylate) simultaneous interpenetratingnetworks (PU/PMMA-SIN) was traced by Fourier transform infraredspectroscopy. The kinetic parameters of the formation reactions of this systemwere determined. The results indicate that the formation reaction mechanismsof the two component networks in the SIN are identical with those of theindividual networks without interference with each other. The effect of MMAcomponent on the kinetics of PU network formation is slight, but the heatand viscosity increase during the PU network formation shorten the induCtionperiod, increase the reaction rate, and make the self- acceleration appearremrkably early for the polymerization of MMA component. |
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| Keywords: | s: interpenetrating polymers reaction kinetics Fourier transformspectroscopy infrared spectrophotometry |
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