Synthesis of aromatic oxazolyl- and carboxyl-functionalized polymers: Atom transfer radical polymerization of styrene initiated by 2-[(4-bromomethyl)phenyl]-4,5-dihydro-4,4-dimethyloxazole
作者:Gabriel J. Summers、Rejoice B. Maseko、B. M. Parveen Beebeejaun、Carol A. Summers
DOI:10.1002/pola.24692
日期:2011.6.15
α‐oxazolyl‐functionalized polymers with predictable number‐average molecular weights, narrow molecular weight distributions in high‐initiator efficiency reactions. Post‐ATRP chain end modification of α‐oxazolyl‐functionalized polystyrene (2) to form the corresponding α‐carboxyl‐functionalized polystyrene (3) was achieved by successive acid‐catalyzed hydrolysis and saponification reactions. The polymerization
一种新化合物2-[((4-溴甲基)苯基] -4,5-二氢-4,4-二甲基恶唑(1)的合成及其在通过原子转移自由基聚合合成恶唑啉官能化的聚苯乙烯中的用途(描述了ATRP)方法。(1)在溴化铜(I)/ 2,2'-联吡啶催化剂体系的存在下,由(1)引发的苯乙烯的ATRP制备芳族恶唑基官能化的聚合物,得到相应的α-恶唑基官能化的聚苯乙烯(2)。聚合过程通过受控的自由基聚合过程进行,以生产相应的α-恶唑基官能化聚合物,该聚合物具有可预测的数均分子量,在高引发剂效率反应中分子量分布较窄。ATRP后的α-恶唑基官能化聚苯乙烯的链端修饰(2)形成相应的α-羧基官能化聚苯乙烯(3))是通过连续的酸催化水解和皂化反应实现的。通过气相色谱分析监测聚合过程。通过薄层色谱,光谱学,尺寸排阻色谱和非水滴定分析对单分子官能化引发剂和官能化聚合物进行了表征。©2011 Wiley Periodicals,Inc. J Polym