Self-Assembling of Single Comb-like Macromolecules on Surface and Their Application in Surface Hydrophobic Improvement

JING Jing; ZHANG Yanwu

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Self-Assembling of Single Comb-like Macromolecules on Surface and Their Application in Surface Hydrophobic Improvement

JING Jing #,ZHANG Yanwu *

School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001

*Correspondence author

#Submitted by

Subject:

Funding: Excellent Young Teacher of Zhengzhou University（No.1421324069）, National Natural Science Foundation of China （No.21574119）

Opened online: 1 April 2016

Accepted by: none

Citation: JING Jing,ZHANG Yanwu.Self-Assembling of Single Comb-like Macromolecules on Surface and Their Application in Surface Hydrophobic Improvement[OL]. [ 1 April 2016] http://en.paper.edu.cn/en_releasepaper/content/4682047

The self-assembling of single macromolecule is superior to that of multi macromolecules in enhancing functionalities due to stability of structure and insensitivity of assembling to concentration. Herein, multi-branched comb-like functional macromolecules are prepared through "grafting from" strategy via combination of ROMP and RAFT living polymerization in which back-bones are synthesized by living ROMP of norbornene derivative anchored with RAFT agent and branched chains are grafted by subsequent RAFT polymerization of hydrophilic 4-vinylpridine and hydrophobic tert-butyl acrylate. The molecular weights of these comb-like functional macromolecules are so great that they can self-assembly into arrays similar to the strcture of lotus leaf cuticle on solid surface in the form of single molecule. The comb-like macromolecules with hydrophilic poly(4-vinylpridine) branches are more effective to improve surface hydrophobicity because of the stronger interaction between substrate and poly(4-vinylpridine) branches. Self-assembling of single macromolecules on surface provides a potential feasible method to modify surface hydrophobic property.

Keywords:polymer chemistry; self-assembly; lotus leaf; bionic; ROMP; RAFT polymerization

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