调整表面固定刷状聚合物的密度。

Tailoring the density of surface-tethered bottlebrushes.

机构信息

Department of Chemistry, Science Laboratories, Durham University, Durham DH1 3LE, England, UK.

出版信息

Langmuir. 2011 Dec 6;27(23):14151-9. doi: 10.1021/la201967f. Epub 2011 Oct 27.

DOI:10.1021/la201967f

PMID:22029905

Abstract

Surface-tethered bottlebrushes have been prepared by ATRP grafting of the macroinitiator brush backbone onto plasmachemical-deposited poly(vinylbenzyl chloride) initiator nanofilms followed by ATRP growth of the side chains (bristles). The surface density of bottlebrushes can be precisely tailored by varying the plasmachemical deposition parameters employed for producing the poly(vinylbenzyl chloride) initiator nanolayers. Lateral force scanning probe microscopy has shown that poly(glycidyl methacrylate)-graft-poly(sodium styrene sulfonate) bottlebrush-decorated surfaces give rise to an enhancement in lubrication.

摘要

通过原子转移自由基聚合（ATRP）将大分子引发剂刷状主链接枝到等离子体化学沉积的聚（氯化 vinylbenzyl）引发剂纳米薄膜上，然后进行侧链（刷毛）的 ATRP 生长，制备了表面接枝的瓶刷。通过改变用于制备聚（氯化 vinylbenzyl）引发剂纳米层的等离子体化学沉积参数，可以精确调整瓶刷的表面密度。横向力扫描探针显微镜显示，聚（甲基丙烯酸缩水甘油酯）-接枝-聚（苯乙烯磺酸钠）瓶刷修饰表面可提高润滑性能。