Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology, Engesserstrasse 18, Karlsruhe, Germany.
Macromol Rapid Commun. 2011 May 18;32(9-10):724-8. doi: 10.1002/marc.201100094. Epub 2011 Mar 17.
A simple and efficient route for the synthesis of cyclic polymer systems is presented. Linear furan protected α-maleimide-ω-cyclopentadienyl functionalized precursors (poly(methyl methacrylate) and poly(tert-butyl acrylate)) were synthesized via atom transfer radical polymerization (ATRP) and subsequent substitution of the bromine end-group with cyclopentadiene. Upon heating at high dilution, deprotection of the dieneophile occurs followed by an intramolecular Diels-Alder reaction yielding a high purity cyclic product.
本文提出了一种合成环状聚合物体系的简单高效方法。通过原子转移自由基聚合（ATRP）合成了线性呋喃保护的α-马来酰亚胺-ω-环戊二烯基功能化的前驱体（聚（甲基丙烯酸甲酯）和聚（叔丁基丙烯酸酯）），然后用环戊二烯取代溴端基。在高稀释下加热时，二烯亲核试剂发生去保护，然后进行分子内 Diels-Alder 反应，得到高纯度的环状产物。
