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 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,International Research Center for X Polymers,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China

出　　处：《Chinese Journal of Polymer Science》2023年第3期365-372,I0004,I0006,共10页高分子科学（英文版）

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)。

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.

关 键 词：Porous coating Polyelectrolyte coating DIP-COATING UV-triggered polymerization Stability 

分 类 号：TQ317[化学工程—高聚物工业]