氢氧化铝、硼酸、异丁基硼酸对苯乙烯原子转移自由基聚合的加速研究; Study of Rate-accelerating of Aluminum Hydroxide,Boric Acid,and(2-Methylpropyl)Boronic Acid for Atom Transfer Radical Polymerization of Styrene | |
罗宇太 ; 庄家明 ; 林旭荣 ; 林睿 ; 许锐 ; 邹友思 | |
2008-01 | |
关键词 | 添加剂 路易斯酸 原子转移自由基聚合 苯乙烯 加速 additive Lewis acid atom transfer radical polymerization(ATRP styrene rate-accelerating |
英文摘要 | 通讯作者:yszou@xmu.edu.cn; [中文文摘]以2-溴丙酸乙酯(EBP)为引发剂,溴化亚铜(CuBr)为催化剂,N,N,N′,N″,N″-五甲基二乙基三胺(PMDETA)为配体,选择了3种路易斯酸(LA),即氢氧化铝(AH)、硼酸(BA)、异丁基硼酸(MPBA)为加速剂,对苯乙烯(St)原子转移自由基聚合的加速进行了研究.结果表明,在80℃下,氢氧化铝、硼酸、异丁基硼酸对苯乙烯原子转移自由基聚合均具有明显的加速效果,发现当[AH]/[EBP]=5、[BA]/[EBP]=4[、MPBA]/[EBP]=5时,加速效果最为明显,且对分子量的控制效果较好,特别是异丁基硼酸在设计分子量较大范围内仍具有明显的加速,且控制效果好.[英文文摘]The polymerization of styrene was mediated by copper(I) bromide/pentramethyl diethyl-triamine(PMDETA) using ethyl 2-bromopropionate(EBP) as initiator and a catalytic amount of Lewis acid(LA),such as aluminum hydroxide(AH),boric acid(BA),and(2-methylpropyl)boronic acid(MPBA),as a rate-accelerating additive.The polymerization in the presence of LA proceeded in a living fashion indicated by the first-order kinetic plots,with increase of Mn with respect to conversion and the relatively narrow polydispersities and had a apparent rate2enhancement efficiency. It was found that the polymerization was cont rolled well and had significant rate enhancements when the molar ratio of [AH]/[EBP]=5∶1,[BA ]/[EBP]=4∶1 , [MPBA ]/[EBP]=5∶1,respectively. And particularly ,the rate of polymerization of styrene with the optimal ratio of [MPBA ]/[ EBP](5∶1) was remarkably enhanced and a good controllability was maintained in the molecular weight from 10 000 to 100 000. |
语种 | 中文 |
出版者 | 《厦门大学学报(自然科学版) 》编辑部 |
内容类型 | 期刊论文 |
源URL | [http://dspace.xmu.edu.cn/handle/2288/263] ![]() |
专题 | 材料学院-已发表论文 |
推荐引用方式 GB/T 7714 | 罗宇太,庄家明,林旭荣,等. 氢氧化铝、硼酸、异丁基硼酸对苯乙烯原子转移自由基聚合的加速研究, Study of Rate-accelerating of Aluminum Hydroxide,Boric Acid,and(2-Methylpropyl)Boronic Acid for Atom Transfer Radical Polymerization of Styrene[J],2008. |
APA | 罗宇太,庄家明,林旭荣,林睿,许锐,&邹友思.(2008).氢氧化铝、硼酸、异丁基硼酸对苯乙烯原子转移自由基聚合的加速研究.. |
MLA | 罗宇太,et al."氢氧化铝、硼酸、异丁基硼酸对苯乙烯原子转移自由基聚合的加速研究".(2008). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论