Synthesis of comb-like macromolecules and their self-assembly behavior on silicon wafer

LI Lina; HUANG Jiajia; ZHANG Yanwu

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Synthesis of comb-like macromolecules and their self-assembly behavior on silicon wafer

LI Lina,HUANG Jiajia,ZHANG Yanwu *

School of Chemical Engineering and Energy, Zhengzhou Uniuersity, 450001

*Correspondence author

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Funding: National Natural Science Foundation of China （No.No.21574119）

Opened online:23 April 2018

Accepted by: none

Citation: LI Lina,HUANG Jiajia,ZHANG Yanwu.Synthesis of comb-like macromolecules and their self-assembly behavior on silicon wafer[OL]. [23 April 2018] http://en.paper.edu.cn/en_releasepaper/content/4744582

Construction of macromolecular topology and control of chain sequence are foundations to synthesize macromolecules with multifunction. Comb-like macromolecules have more designable freedoms because their back-bones and branched chains can be independently designed and synthesized. Herein, the rigid back-bones of comb-like macromolecules had been synthesized by ROMP of norbornene derivatives anchoring RAFT agent. The gradient polymer branched chains with controlled sequence structure was synthesized through a modified RAFT miniemulsion polymerization of 4-vinylpridiene (4VP) and t-butyl acrylate (tBA) in a semi-batch manner. These comb-like macromolecules can self-assembly into arrays due to the stiffness of backbone when dilute solution of comb-like macromolecules are brushed onto silicon surface. The size of arrays is affected by molecular weight and sequence structure of branched chains. The effect of these arrays on water contact angle of silicon is studied also.

Keywords:Polymer; Comb-like macromolecules; Gradient copolymer; ROMP; Semi-batch RAFT modified miniemulsion polymerization; self-assembly

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