在可见光和无金属条件下对RAFT聚合物进行双途径链端修饰
Dual-pathway chain-end modification of RAFT polymers using visible light and metal-free conditions.
作者信息
Discekici Emre H, Shankel Shelby L, Anastasaki Athina, Oschmann Bernd, Lee In-Hwan, Niu Jia, McGrath Alaina J, Clark Paul G, Laitar David S, de Alaniz Javier Read, Hawker Craig J, Lunn David J
机构信息
Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA and Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA.
Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA.
出版信息
Chem Commun (Camb). 2017 Feb 2;53(11):1888-1891. doi: 10.1039/c6cc08370f.
Abstract
We report a metal-free strategy for the chain-end modification of RAFT polymers utilizing visible light. By turning the light source on or off, the reaction pathway in one pot can be switched between either complete desulfurization (hydrogen chain-end) or simple cleavage (thiol chain-end), respectively. The versatility of this process is exemplified by application to a wide range of polymer backbones under mild, quantitative conditions using commercial reagents.
摘要
我们报道了一种利用可见光对RAFT聚合物进行链端修饰的无金属策略。通过打开或关闭光源，一锅法中的反应路径可以分别在完全脱硫（氢链端）或简单裂解（硫醇链端）之间切换。在温和的定量条件下，使用市售试剂将该方法应用于多种聚合物主链，证明了其通用性。
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