Rylene bisimide-based nanoparticles with cross-linked core and thermoresponsive shell using poly(vinyl amine)-based block copolymers
Rylene bisimide-based nanoparticles with cross-linked core and thermoresponsive shell using poly(vinyl amine)-based block copolymers
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DOI：
10.1016/j.polymer.2015.04.075
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发表时间：
2015-06
期刊：
影响因子：
4.6
通讯作者：
Kazuhiro Nakabayashi;Daiki Noda;Yuichiro Watanabe;H. Mori
中科院分区：
文献类型：
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作者：
Kazuhiro Nakabayashi;Daiki Noda;Yuichiro Watanabe;H. Mori
采用RAFT聚合法制备了聚N-乙烯胺和聚N-异丙基丙烯酰胺嵌段共聚物，通过选择性交联和自组装，制备了以萘嵌苯双酰亚胺为交联核的纳米粒子。聚（乙烯胺）-b-聚（NIPAM）与亚芳基二酐衍生物（包括萘-1，8：4，5-四羧酸二酐和苝-3，4：9，10-四羧酸二酐）的一步酰亚胺化分别得到具有萘双酰亚胺核（NP-NBI）和苝双酰亚胺核（NP-PBI）的纳米颗粒。DLS分析表明，交联纳米粒子的尺寸是均匀的，可以通过酰亚胺化条件进行控制。紫外-可见光，荧光，和循环伏安法的测量导致的光学和电化学性质来自NBI和PBI单元的交联纳米粒子，支持所需的纳米粒子的成功制备。
Rylene bisimide-based nanoparticles with cross-linked core were synthesized by site-selective cross-linking and self-assembly of block copolymer composed of poly(N-vinyl amine) and poly(N-isopropylacrylamide), which was prepared by RAFT polymerization. Single-step imidization of poly(vinyl amine)-b-poly(NIPAM) with arylene dianhydride derivatives, including naphthalene-1,8:4,5-tetracarboxylic dianhydride and perylene-3,4:9,10-tetracarboxylic dianhydride, afforded nanoparticles with naphthalene bisimide core (NP-NBI) and perylene bisimide core (NP-PBI), respectively. DLS analysis demonstrated that the size of cross-linked nanoparticles was uniform and could be controlled by the imidization conditions. UV–vis, fluorescence, and cyclic voltammetry measurements led to the optical and electrochemical properties derived from NBI and PBI units in the cross-linked nanoparticles, supporting the successful preparation of desired nanoparticles.