Combining Ring-Opening Metathesis Polymerization (ROMP) with Sharpless-Type “Click” Reactions: An Easy Method for the Preparation of Side Chain Functionalized Poly(oxynorbornenes)
作者:Wolfgang H. Binder、Christian Kluger
DOI:10.1021/ma0480087
日期:2004.12.1
ROMP yielding the final polymers; (b) the ROMP polymerization furnishing first poly(oxynorbornenes) bearing acetylenic and azido moieties and subsequently attaching the functional units by use of the “click” reactions onto the modified polymers. Both strategies show efficient functionalization behavior with a high tolerance of functional groups with respect to the functional units attached as demonstrated
叠氮化物和乙炔之间的无尖锐的1,3-偶极环加成反应(“点击反应”)用于制备侧链内的功能性聚氧降冰片烯。应用了两种不同的策略将ROMP聚合物的制备方法与1,3-偶极环加成反应相结合:(a)通过1,3-偶极环加成反应将官能团(即疏水和氢键合单元)与7-带有乙炔的氧降冰片烯和随后的ROMP产生最终聚合物;(b)通过ROMP聚合反应,首先提供带有炔和叠氮基部分的聚(氧降冰片烯),然后通过“点击”反应将官能团连接到改性聚合物上。1 H和13 C NMR光谱学开辟了仅使用很少的原料制备多种官能化聚氧降冰片烯的可能性。