Type I Photoinitiator-Functionalized Block Copolymer Nanoparticles Prepared by RAFT-Mediated Polymerization-Induced Self-Assembly
Type I Photoinitiator-Functionalized Block Copolymer Nanoparticles Prepared by RAFT-Mediated Polymerization-Induced Self-Assembly
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DOI：
10.1021/acsmacrolett.1c00014
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发表时间：
2021-02-03
影响因子：
7.015
通讯作者：
Tan, Jianbo
中科院分区：
文献类型：
--
作者：
Du, Yang;Jia, Shuai;Tan, Jianbo
I型光引发剂已广泛用于制造功能性聚合物材料如涂料、油墨和粘合剂的紫外-可见光固化技术中。为了克服使用小分子I型光引发剂的缺点并扩展UV-可见光固化技术的潜在应用，将I型光引发剂附接到聚合物胶体表面是一种有吸引力的策略。在这里，我们报告了一个强大的策略，通过水可逆加成-断裂链转移（RAFT）介导的聚合诱导自组装（比萨），其中的I型光引发剂端基的光引发能力提供了进一步的功能化景观的I型光引发剂功能化的嵌段共聚物纳米粒子的各种形态的有效制备。这些嵌段共聚物纳米颗粒也可以用作非均相光引发剂，以生成具有嵌入内部的纳米颗粒的水凝胶。值得注意的是，这些水凝胶的性质和功能可以通过使用不同的嵌段共聚物纳米颗粒来进一步控制。这项研究提供了一个强大的策略，向制备I型光引发剂官能化的嵌段共聚物纳米粒子的能力，以不同的功能进行修改。
Type I photoinitiators have been widely used in UV-vis curing technology for the fabrication of functional polymer materials such as coatings, inks, and adhesives. To overcome the drawbacks of using small molecular type I photoinitiators and expand the potential applications of UV-vis curing technology, attaching type I photoinitiators onto the surface of polymer colloids is an attractive strategy. Here we report a robust strategy for the efficient preparation of type I photoinitiator-functionalized block copolymer nanoparticles with various morphologies via aqueous reversible addition-fragmentation chain transfer (RAFT)-mediated polymerization-induced self-assembly (PISA), in which the photoinitiating ability of the type I photoinitiator end group provides a landscape for further functionalization. These block copolymer nanoparticles could also be used as heterogeneous photoinitiators to generate hydrogels with nanoparticles embedded inside. Significantly, the properties and functionalities of these hydrogels could be further controlled by using different block copolymer nanoparticles. This study provides a robust strategy toward the preparation of type I photoinitiator-functionalized block copolymer nanoparticles with the capacity to be modified with varying functionalities.