| 光引发N-乙烯基吡咯烷酮在嵌段聚醚聚氨酯膜上接枝聚合的研究 |
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| 引用本文： | 哈鸿飞,刘先勇,吴季兰,杨福良,冯新德. 光引发N-乙烯基吡咯烷酮在嵌段聚醚聚氨酯膜上接枝聚合的研究[J]. 高分子学报, 1988, 0(3): 219-222 |
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| 作者姓名： | 哈鸿飞 刘先勇 吴季兰 杨福良 冯新德 |
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| 作者单位： | 北京大学技术物理系(哈鸿飞，刘先勇，吴季兰)，北京大学化学系(杨福良)，北京大学化学系(冯新德) |
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| 摘 要： | 本文研究了在碱性介质中,氮气氛下 N-乙烯基吡咯烷酮(N-VP)在嵌段聚醚聚氨酯(SPEU)膜上的接枝聚合。测定了接枝率与接枝液中 N-VP单体浓度、光照时间、催化剂浓度等条件的关系。测定了接枝后 SPEU 膜的吸水性,并用扫描电镜对膜表面进行了观察。对碱性介质中的接枝机理进行了初步探讨。
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| 关 键 词： | 嵌段聚醚氨酯、N-乙烯基吡咯烷酮 光接枝反应 接枝共聚 |
| 收稿时间： | 1985-12-31 |
THE PHOTO-INDUCED GRAFTING COPOLYMERIZATION OF N-VINYL-2-PYRROLIDONE TO SEGMENTED POLYETHERURETHANE IN ALKALINE MEDIUM |
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| HA Hong-fei,LIU Xian-yong,WU Ji-lan,YANG Fu-liang,FENG Xin-de. THE PHOTO-INDUCED GRAFTING COPOLYMERIZATION OF N-VINYL-2-PYRROLIDONE TO SEGMENTED POLYETHERURETHANE IN ALKALINE MEDIUM[J]. Acta Polymerica Sinica, 1988, 0(3): 219-222 |
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| Authors: | HA Hong-fei LIU Xian-yong WU Ji-lan YANG Fu-liang FENG Xin-de |
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| Affiliation: | Department of Technical Physics; Peking University; Beijing; Department of Chemistry; Beijing |
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| Abstract: | The photo-induced grafting copolymerization of N-vinyl-2-pyrrolidone (NVP) to segmented polyetherurethane (SPEU) was studied. The experiments in this work were performed at nitrogen atmosphere and room temperature by using UV light.The effects of concentration of N-VP and light sensitive agent DMT in the grafting solutions and irradiation time on the grafting yield in acid and basic mediums were investigated. The swelling behavior of modified films in water was followed and the surface structure of the films was observed by scanning electron microscope.All the results showed that this kind of photo-induced grafting occured successfully in alkaline medium. The reason of the alkaline effect was discussed briefly. |
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| Keywords: | Segmented Polyetherurethane N-vinyl-2-pyrrolidone UV-induced grafting Grafting Copolymerization |
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