Polymer Functional Nanodiamonds by Light-Induced Ligation
Polymer Functional Nanodiamonds by Light-Induced Ligation
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DOI：
10.1021/acs.macromol.5b02607
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发表时间：
2016-02
期刊：
影响因子：
5.5
通讯作者：
Kilian N. R. Wuest;V. Trouillet;Anja S. Goldmann;M. Stenzel;C. Barner‐Kowollik
中科院分区：
文献类型：
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作者：
Kilian N. R. Wuest;V. Trouillet;Anja S. Goldmann;M. Stenzel;C. Barner‐Kowollik
提出了一种用明确的功能聚合物对纳米金刚石（ND）进行功能化的光触发策略。所采用的接枝方法基于邻甲基苯甲醛，在紫外线照射下形成邻醌二甲烷，与亲双烯体发生狄尔斯-阿尔德反应。一系列明确的马来酰亚胺端基功能聚合物，即聚(苯乙烯) (Mn = 5800 g mol–1; Đ = 1.2)、聚(N-异丙基丙烯酰胺) (Mn = 5800 g mol–1, Đ = 1.2) 和聚(2-(2′,3′,4′,6′-四-O-乙酰基-α-d-甘露糖基氧基)乙基甲基丙烯酸酯）（Mn = 24 300、39 000 和 58 800 g mol–1，Đ ≤ 1.3），通过受保护的马来酰亚胺功能性 RAFT 试剂的可逆加成断裂链转移 (RAFT) 聚合制备。呋喃保护的马来酰亚胺端基脱保护后，将聚合物光接枝到邻甲基苯甲醛功能性 ND 上，并通过红外 (IR) 光谱、X 射线光电子能谱 (XPS) 和热重分析 (TGA) 进行详细表征。接枝密度降低...
A light-triggered strategy to functionalize nanodiamonds (NDs) with well-defined functional polymers is presented. The employed grafting approach is based on o-methylbenzaldehydes, which upon UV irradiation form o-quinodimethanes that undergo Diels–Alder reactions with dienophiles. A series of well-defined maleimide end-group functional polymers, i.e., poly(styrene) (Mn = 5800 g mol–1; Đ = 1.2), poly(N-isopropylacrylamide) (Mn = 5800 g mol–1, Đ = 1.2), and poly(2-(2′,3′,4′,6′-tetra-O-acetyl-α-d-mannosyloxy)ethyl methacrylate) (Mn = 24 300, 39 000, and 58 800 g mol–1, Đ ≤ 1.3), were prepared via reversible addition–fragmentation chain transfer (RAFT) polymerization of protected maleimide functional RAFT agents. After deprotection of the furan-protected maleimide end groups, the polymers were photografted to o-methylbenzaldehyde functional NDs and characterized in detail via infrared (IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The grafting density decreas...