| TEMPO调控下的苯乙烯光聚合 |
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| 引用本文： | 黄剑莹,邹友思.TEMPO调控下的苯乙烯光聚合[J].高等学校化学学报,2008,29(8):1689-1693. |
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| 作者姓名： | 黄剑莹 邹友思 |
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| 作者单位： | 1. 中国科学院福建物质结构研究所,福州,350002
2. 厦门大学材料科学与工程系,厦门,361005 |
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| 摘 要： | 在UV光照射下, 以Irgacure 1103/TEMPO为引发剂, 实现了苯乙烯的低温光引发可控聚合, 得到了低分散性的聚苯乙烯. 与热引发聚合相比较, 光聚合的反应条件更温和, 聚合速率更快. 探讨了聚合体系中光引发剂及光强等因素的影响, 实现了光聚合产物的扩链反应.
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| 关 键 词： | UV光聚合 氮氧自由基可控聚合 苯乙烯 |
| 收稿时间： | 2007-12-03 |
Notroxide Mediated Radical Polymerization of Styrene Irradiated by TEMPO with UV Light |
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| HUANG Jian-Ying,ZOU You-Si.Notroxide Mediated Radical Polymerization of Styrene Irradiated by TEMPO with UV Light[J].Chemical Research In Chinese Universities,2008,29(8):1689-1693. |
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| Authors: | HUANG Jian-Ying ZOU You-Si |
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| Institution: | Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China; ;Department of Materials Science and Engineering, Xiamen University, Xiammen 361005, China |
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| Abstract: | Nitroxide mediated radical polymerization(NMRP) was employed to synthesize polystyrene in the presence of TEMPO irradiated with UV light at 50 ℃. The polymerization exhibited the characteristic of a controlled polymerization. In comparison with the thermal-initiated polymerization, the condition of UV-irradiated polymerization is milder and the rate is faster. The photopolymerization can be realized at 50 ℃ and the conversion can reach 99% within 10 h. The influence of concentration of photo-initiator and light intensity was discussed. The molecular weight can be controlled in the range of 3×104—1×105 and the higher light intensity is good for controlling the polymerization. |
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| Keywords: | UV-irradiated polymerization Nitroxide mediated radical polymerization(NMRP) Styrene |
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