Department of Chemical Engineering, University of Rochester, 206 Gavett Hall, Rochester, New York, 14627, USA.
Adv Mater. 2014 Oct 8;26(37):6497-502. doi: 10.1002/adma.201402097. Epub 2014 Aug 25.
Photomediated addition-fragmentation chemistry is applied to demonstrate the precisely controlled diffusion of chemical species through polymer networks. Fluorescent groups connected to polymer networks by allyl sulfide moieties become mobile upon irradiation with UV light due to radical-mediated addition-fragmentation bond exchange. Photoinduced transport through the bulk, into solution, and across film interfaces is demonstrated.
光介导加成-断裂化学被应用于证明化学物质通过聚合物网络的精确控制扩散。通过烯丙基硫醚部分连接到聚合物网络的荧光基团在紫外光照射下由于自由基介导的加成-断裂键交换而变得可移动。通过体相、进入溶液和跨越膜界面的光诱导传输得到了证明。
