| TEMPO存在下丙二腈对苯乙烯聚合的加速作用研究; MN as a Rate-accelerating Additive for Styrene Polymerization Mediated by TEMPO | |
| 林建 ; 郑淑英(宁德高等专科学校化学系) ; 李万利 ; 颜明发 ; 黄剑莹 ; 林明华 ; 邹友思 | |
| 2003-07 | |
| 关键词 | 丙二腈 活性自由基聚合 加速剂 TEM PO Malononitrile（MN） Living free radical polymerization Rate-accelerating additive TEMPO |
| 英文摘要 | ［中文文摘］在少量丙二腈存在下 ,苯乙烯在稳定自由基 TEMPO作用下的聚合速率显著增加 ,分子量分布较窄 ,且随转化率增大而增大 ,具有活性聚合特征 .丙二腈与 TEMPO的摩尔比在 4∶ 1时加速效果较好 ,在1 2 5℃下聚合 1 h转化率可达到 70 % ,分子量可达到10 5,且反应温度降低到 1 1 0℃ .1 H NMR分析表明 ,丙二腈在反应中起催化剂作用 ,通过削弱碳氮键可以提高转化速度 ,还可明显降低聚合温度.［英文文摘］Styrene polymerization mediated by TEMPO was distinctly accelerated by the addition of small amounts of malononitrile(MN). The polymerization proceeded in a living fashion as indicated by the increase in molecular weight with time and conversion and relatively low polydispersities. It was found that the polymerization rate was so quick that the conversion reached 70% within 1 h at 125 ℃ when n(MN)∶ n(TEMPO) equaled to 4∶1. Moreover the molecular weight could be controlled to10 5and the reaction temperature could be reduced to 110 ℃. A nalysis of 1H NMR show ed thatMN only acted a catalyst to enhance the polymerization rate and reduce clearly the temperature by weakening the bond of C—O.; 固体表面物理化学国家重点实验室基金(NO:1130) |
| 语种 | 中文 |
| 出版者 | 中华人民共和国教育部(吉林大学承办) |
| 内容类型 | 期刊论文 |
| 源URL | [http://dspace.xmu.edu.cn/handle/2288/3002]  |
| 专题 | 化学化工－已发表论文 |
| 推荐引用方式 GB/T 7714 | 林建,郑淑英(宁德高等专科学校化学系),李万利,等. TEMPO存在下丙二腈对苯乙烯聚合的加速作用研究, MN as a Rate-accelerating Additive for Styrene Polymerization Mediated by TEMPO[J],2003. |
| APA | 林建.,郑淑英.,李万利.,颜明发.,黄剑莹.,...&邹友思.(2003).TEMPO存在下丙二腈对苯乙烯聚合的加速作用研究.. |
| MLA | 林建,et al."TEMPO存在下丙二腈对苯乙烯聚合的加速作用研究".(2003). |
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