This study presents the synthesis and properties of linear PVDF‐based amphiphilic triblock terpolymers with PS and PEO, [PVDF‐b‐PS‐b‐PEO], by adopting a procedure that involves: (a) iodine‐transfer polymerization (ITP) of VDF with 1‐iodoperfluorohexane (C₆F₁₃I) serving as chain‐transfer agent (CTA) to afford C₆F₁₃‐PVDF‐I, (b) ITP of styrene with the C₆F₁₃‐PVDF‐I macromolecular‐CTA to obtain C₆F₁₃‐PVDF‐b‐PS‐I diblock copolymer, (c) end‐group exchange from iodo‐ to azido‐group by nucleophilic substitution reaction with NaN_3, and (d) copper‐catalyzed azide‐alkyne cycloaddition (CuAAC) with alkyne‐terminated PEO to achieve C₆F₁₃‐PVDF‐b‐PS‐b‐PEO triblock terpolymers. The ¹H and ¹⁹F NMR spectroscopy confirmed the presence of all blocks, while gel permeation chromatography traces showed the living nature of ITP technique. The self‐assembly of these terpolymers was investigated in films (atomic force microscopy and DSC), as well as in aqueous and organic solvents (DLS). The analysis of crystalline phases based on the FTIR spectroscopy indicated the conversion of PVDF α‐phase into α + β‐phases and β + γ‐phases upon the incorporation of PS and PEO blocks, respectively. The synthesized amphiphilic copolymers were evaluated (fluorescence spectroscopy) as carriers of small hydrophobic molecules in water. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019

中文翻译：

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碘转移聚合和CuAAC“点击”化学：一种基于聚偏二氟乙烯的两亲三嵌段三元共聚物的通用方法

本研究提出的合成和与PS和PEO线性PVDF基两性三嵌段三元共聚物的性能，[PVDF- b -PS- b -PEO]，通过采用涉及的过程：（1）碘转移聚合（ITP）的用1-碘全氟己烷（C ₆ F ₁₃ I）作为链转移剂（CTA）的VDF，以提供C ₆ F ₁₃ -PVDF-I，（b）苯乙烯的ITP与C ₆ F ₁₃ -PVDF-I大分子- CTA获得C ₆ F ₁₃ -PVDF - b - PS -I二嵌段共聚物，（c）通过与NaN _3的亲核取代反应从碘基转变为叠氮基端基_，（d）铜催化的叠氮化物-炔烃环加成（CuAAC）与炔烃封端的PEO，以实现C ₆ F ₁₃ -PVDF- b- PS- b -PEO三嵌段三元共聚物。的¹ H和¹⁹F NMR光谱证实了所有嵌段的存在，而凝胶渗透色谱痕迹显示了ITP技术的活性。在薄膜（原子力显微镜和DSC）以及水性和有机溶剂（DLS）中研究了这些三元共聚物的自组装。基于FTIR光谱的结晶相分析表明，分别引入PS和PEO嵌段后，PVDFα相转变为α+β相和β+γ相。评价合成的两亲共聚物（荧光光谱法）作为水中小的疏水分子的载体。分级为4 +©2019 Wiley Periodicals，Inc.J.Polym。科学，A部分：Polym。化学 2019年