Preparation of Patterned Ultrathin Polymer Films

doi:10.1021/la502659e

CORC > 化学研究所 > 中国科学院化学研究所

	Preparation of Patterned Ultrathin Polymer Films
	Yang, Huige 1,2; Su, Meng 1,2; Li, Kaiyong 1,2; Jiang, Lei 1; Song, Yanlin 1; Doi, Masao 3; Wang, Jianjun 1
刊名	LANGMUIR
	2014-08-12
卷号	30 期号:31 页码:9436-9441
ISSN号	0743-7463
DOI	10.1021/la502659e
英文摘要	Though patterned ultrathin polymer films (<100 nm) are of great importance in the fields of sensors and nanoelectronic devices, the fabrication of patterned ultrathin polymer films remains a great challenge. Herein, patterned ultrathin polymer films are fabricated facilely on hydrophobic substrates with different hydrophilic outline patterns by the pinning of three-phase contact lines of polymer solution on the hydrophilic outlines. This method is universal for most of the water-soluble polymers, and poly(vinyl alcohol) (PVA) has been selected as a model polymer due to its biocompatibility and good film-forming property. The results indicate that the morphologies of ultrathin polymer films can be precisely adjusted by the size of the hydrophilic outline pattern. Specifically, patterned hydrophilic outlines with sizes of 100, 60, and 40 mu m lead to the formation of concave-shaped ultrathin PVA films, whereas uniform ultrathin PVA films are formed on 20 and 10 mu m patterned substrates. The controllabilities of morphologies can be interpreted through the influences of the slip length and coffee ring effect. Theoretical analysis shows that when the size of the hydrophilic outline patterns is smaller than a critical value, the coffee ring effect disappears and uniform patterned ultrathin polymer films can be formed for all polymer concentrations. These results provide an effective methodology for the fabrication of patterned ultrathin polymer films and enhance the understanding of the coffee ring effect.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000340347300024
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/51259]
专题	中国科学院化学研究所
通讯作者	Wang, Jianjun
作者单位	1.Chinese Acad Sci, Inst Chem, Key Lab Green Printing, BNLMS, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beihang Univ, Ctr Soft Matter Phys & Its Applicat, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Yang, Huige,Su, Meng,Li, Kaiyong,et al. Preparation of Patterned Ultrathin Polymer Films[J]. LANGMUIR,2014,30(31):9436-9441.
APA	Yang, Huige.,Su, Meng.,Li, Kaiyong.,Jiang, Lei.,Song, Yanlin.,...&Wang, Jianjun.(2014).Preparation of Patterned Ultrathin Polymer Films.LANGMUIR,30(31),9436-9441.
MLA	Yang, Huige,et al."Preparation of Patterned Ultrathin Polymer Films".LANGMUIR 30.31(2014):9436-9441.