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通过点击反应将温敏叠氮封端的聚（N-异丙基丙烯酰胺）功能化多壁碳纳米管。

Functionalization of multi-walled carbon nanotubes with thermo-responsive azide-terminated poly(N-isopropylacrylamide) via click reactions.

机构信息

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China.

出版信息

Molecules. 2013 Apr 18;18(4):4599-612. doi: 10.3390/molecules18044599.

DOI:10.3390/molecules18044599
PMID:23599017
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6270311/
Abstract

Covalently functionalized multi-walled carbon nanotubes (MWNTs) were prepared by grafting well-defined thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) via click reactions. First, azide-terminated poly(N-isopropylacrylamide) (N3-PNIPAM) was synthesized by reversible addition fragmentation chain-transfer (RAFT) polymerization, and then the N₃-PNIPAM moiety was connected onto MWNTs by click chemistry. The products were characterized by means of FT-IR, TGA and TEM. The results show that the modification of MWNTs is very successful and MWNTs functionalized by N₃-PNIPAM (MWNTs-PNIPAM) have good solubility and stability in water. TEM images show the functionalized MWNTs are dispersed individually, indicating that the bundles of original MWNTs are separated into individual tubes by surface modification with polymer chains. These MWNTs modified with PNIPAM represent a potential nano-material for preparation of hydrophilic composite materials.

摘要

通过点击反应，将接枝有明确的温敏性聚（N-异丙基丙烯酰胺）（PNIPAM）的共价功能化多壁碳纳米管（MWNTs）制备出来。首先，通过可逆加成-断裂链转移（RAFT）聚合合成叠氮封端的聚（N-异丙基丙烯酰胺）（N3-PNIPAM），然后通过点击化学将 N3-PNIPAM 部分连接到 MWNTs 上。通过傅里叶变换红外光谱（FT-IR）、热重分析（TGA）和透射电子显微镜（TEM）对产物进行了表征。结果表明，MWNTs 的修饰非常成功，且通过 N3-PNIPAM 功能化的 MWNTs（MWNTs-PNIPAM）在水中具有良好的溶解性和稳定性。TEM 图像显示功能化的 MWNTs 分散良好，表明原始 MWNTs 的束被聚合物链的表面修饰分离成单个管。这些用 PNIPAM 修饰的 MWNTs 代表了制备亲水性复合材料的潜在纳米材料。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/3a68c9058ec8/molecules-18-04599-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/4b01d7f1b0c4/molecules-18-04599-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/9cec0dc82bd8/molecules-18-04599-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/5d715f1d0bf9/molecules-18-04599-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/802049d7bb64/molecules-18-04599-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/5d7b5de739c0/molecules-18-04599-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/54d052ac96cc/molecules-18-04599-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/85f875c8c928/molecules-18-04599-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/3a68c9058ec8/molecules-18-04599-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/4b01d7f1b0c4/molecules-18-04599-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/9cec0dc82bd8/molecules-18-04599-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/5d715f1d0bf9/molecules-18-04599-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/802049d7bb64/molecules-18-04599-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/5d7b5de739c0/molecules-18-04599-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/54d052ac96cc/molecules-18-04599-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/85f875c8c928/molecules-18-04599-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2126/6270311/3a68c9058ec8/molecules-18-04599-g007.jpg

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