UV-triggered Polymerization of Polyelectrolyte Composite Coating with Pore Formation and Lubricant Infusion

作     者：Jia-Qi Hu Wei-Pin Huang Jing Wang Ke-Feng Ren Jian Ji Jia-Qi Hu;Wei-Pin Huang;Jing Wang;Ke-Feng Ren;Jian Ji

作者机构：MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationInternational Research Center for X PolymersDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2023年第41卷第3期

页      面：365-372,I0004,I0006页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China(No.U20A20262) Zhejiang Provincial Natural Science Foundation of China(No.LD22E030008) the Zhejiang Provincial Ten Thousand Talents Program(No.2018R52001) Fundamental Research Funds for the Central Universities(No.2021FZZX003-01-03)。 

主　　题：Porous coating Polyelectrolyte coating Dip-coating UV-triggered polymerization Stability 

摘      要：Porous coatings with the features of muti-interfaces and high specific surface area have emerged as an excellent material platform for the manipulation of porous structures.Layer-by-layer(Lb L)assembly technique has been widely used in preparing porous polyelectrolyte coatings.However,the efficient construction of stable film from the Lb L technique is still a question.Herein,we reported a new solution to construct a stabilized polyelectrolyte coating with porous structures.Inspired by the mechanical reinforcement of double-network hydrogel,we constructed the poly(ethylenimine)(PEI)/poly(acrylic acid)(PAA)coating by in situ photopolymerization of acrylic acid in the PEI network instead of assembling PEI and PAA.Compared with the Lb L films,the in situ polymerized coating kept higher stability after 30 iterations of friction.Porous structures could also be constructed after acid treatment,which was utilized to load lubricant to enhance the lubricating property of the coating.This work provides a new method for the construction of dynamic and stable polyelectrolyte coatings,expediting more development of practical applications.