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通过可逆配位介导的活性自由基聚合到光诱导自由基氧化/加成/失活过程的机理转化合成嵌段共聚物。

Synthesis of Block Copolymers by Mechanistic Transformation from Reversible Complexation Mediated Living Radical Polymerization to the Photoinduced Radical Oxidation/Addition/Deactivation Process.

机构信息

Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey.

Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore.

出版信息

ACS Macro Lett. 2022 Mar 15;11(3):342-346. doi: 10.1021/acsmacrolett.2c00004. Epub 2022 Feb 22.

DOI:10.1021/acsmacrolett.2c00004
PMID:35575368
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8928464/
Abstract

A versatile strategy for the fabrication of block copolymers by the combination of two discrete living polymerization techniques─reversible complexation mediated living radical polymerization (RCMP) and photoinduced radical oxidation addition deactivation (PROAD) processes─is reported. First, RCMP is conducted to yield poly(methyl methacrylate) with iodide end groups (PMMA-I). In the following step, PMMA-I is used as macroinitiator for living PROAD cationic polymerization of isobutyl vinyl ether. Successful formation of the block copolymers is confirmed by H NMR, FT-IR, GPC, and DSC investigations.

摘要

本文报道了一种通过两种离散的活性聚合技术——可逆配位介导的活性自由基聚合（RCMP）和光诱导自由基氧化加成失活（PROAD）过程的结合来制备嵌段共聚物的通用策略。首先，进行 RCMP 以得到末端带有碘原子的聚甲基丙烯酸甲酯（PMMA-I）。在下一步中，PMMA-I 被用作异丁基乙烯基醚的活性 PROAD 阳离子聚合的大分子引发剂。通过 H NMR、FT-IR、GPC 和 DSC 研究证实了嵌段共聚物的成功形成。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/446fea6be545/mz2c00004_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/cb715e6e27d4/mz2c00004_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/b0d912375029/mz2c00004_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/4383cfa32282/mz2c00004_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/e23b920fea8d/mz2c00004_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/446fea6be545/mz2c00004_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/cb715e6e27d4/mz2c00004_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/b0d912375029/mz2c00004_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/4383cfa32282/mz2c00004_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/e23b920fea8d/mz2c00004_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f14/8928464/446fea6be545/mz2c00004_0002.jpg

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本文引用的文献

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Combination of Cationic and Radical RAFT Polymerizations: A Versatile Route to Well-Defined Poly(ethyl vinyl ether)--poly(vinylidene fluoride) Block Copolymers.阳离子与自由基可逆加成-断裂链转移聚合反应的结合：合成结构明确的聚（乙基乙烯基醚）-聚（偏二氟乙烯）嵌段共聚物的通用途径。
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Direct Mechanistic Transformations from Isotactic or Syndiotactic Living Anionic Polymerizations of Methyl Methacrylate into Metal-Catalyzed Living Radical Polymerizations.从甲基丙烯酸甲酯的全同立构或间同立构活性阴离子聚合到金属催化活性自由基聚合的直接机理转变
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