Facile Synthesis of Functional Processable Fluoropolydienes by Alkyne-Based Multicomponent Polycouplings,Macromolecules

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Facile Synthesis of Functional Processable Fluoropolydienes by Alkyne-Based Multicomponent Polycouplings
Macromolecules ( IF 5.1 ) Pub Date : 2020-11-16 , DOI: 10.1021/acs.macromol.0c01527
Qingqing Gao _{1,

2} , Ting Han ₃ , Xiaolin Liu ₁ , Zijie Qiu ₁ , Shunjie Liu ₁ , Peifa Wei ₁ , Xinnan Wang ₁ , Jacky W. Y. Lam _{1,

4} , Ben Zhong Tang _{1,

4,

5}

Affiliation

A facile alkyne-based multicomponent polymerization route was developed for the construction of solution-processable fluoropolymers with multiple functionalities. The palladium-catalyzed one-pot polycouplings of diynes, arylboronic acids, and perfluoroalkyl diiodides proceed efficiently in THF/H₂O mixtures at 39 °C for 12 h under nitrogen atmosphere, furnishing E-configuration-predominant fluoropolydienes (FPDs) with high molecular weights (M_w up to 69,400) in satisfactory yields (up to 90.3%). This polymerization method shows good tolerance to moisture and various functional groups. The obtained fluoropolymers possess good solution processability and film-forming ability, which enable them to be used as functional films. Their thin films exhibit photoresponsive fluorescence and high refractive indices. Well-resolved fluorescent 2D-photopatterns can be readily generated by the photolithography technique. Besides, these polymers show good thermal stability with high degradation temperatures at 5% weight loss of up to 364 °C.

中文翻译：

基于炔烃的多组分聚偶联剂轻松合成功能性可加工氟代二烯

开发了一种简便的基于炔烃的多组分聚合路线，用于构建具有多种功能的可溶液加工的含氟聚合物。钯催化的二炔，芳基硼酸和全氟烷基二碘化物的一锅多联反应在THF / H ₂ O混合物中在氮气氛下于39°C下有效地进行12 h，从而提供了具有E-构型的氟代二烯（FPD）高分子权重（中号_{w ^}高达69,400）的高产（高达90.3％）。该聚合方法显示出对水分和各种官能团的良好耐受性。所获得的含氟聚合物具有良好的溶液加工性和成膜能力，使其能够用作功能性膜。它们的薄膜表现出光响应荧光和高折射率。可以通过光刻技术容易地产生分辨率良好的荧光二维光图案。此外，这些聚合物在高达364°C的5％失重下具有高降解温度的良好热稳定性。

更新日期：2020-11-25

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