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题名: Solvent effect on the film formation and the stability of the surface properties of poly(methyl methacrylate) end-capped with fluorinated units
作者: Wang, Xiaofang1;  Ni, Huagang1;  Xue, Dongwu1;  Wang, Xinping1;  Feng, Ran-ran2;  Wang, Hong-fei2
关键词: hydrophobic surface ;  perfluoroalkyl side chain ;  surface structure ;  end-capped poly(methyl methacrylate) ;  solvent effect
刊名: JOURNAL OF COLLOID AND INTERFACE SCIENCE
发表日期: 2008-05-15
DOI: 10.1016/j.jcis.2008.02.018
卷: 321, 期:2, 页:373-383
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The surface structure and stability (the resistance to surface reconstruction) of end-capped poly(methyl methacrylate) films were greatly affected by the solvents used for film preparation. Films of end-capped PMMA with about four 2-perfluorooctylethyl methacrylate units cast with benzotrifluoride solution exhibited excellent stability and resistance to polar environments compared with those cast with cyclohexanone and toluene solutions. The observed difference in stability between these fluorinated surfaces is attributed to their surface microstructures formed during the film formation processes, which are closely related to the associative behavior of the end-capped PMMA in the solution. A relatively perfect close-packed and well-ordered structure of the perfluoroalkyl side chains at the surface of the PMMA(857)-ec-FMA(3.3) film was formed when the film was cast with benzotrifluoride solution, in which only unimers existed. This study indicates that such a solvent effect may be used to promote the formation of a well-ordered packing structure of the fluorinated moieties at the film surface. The ordering of the packing structure is to a certain extent more important than the content of the fluorinated moieties at the surface for improving the surface stability. (c) 2008 Elsevier Inc. All rights reserved.
关键词[WOS]: SUM-FREQUENCY GENERATION ;  PERFLUOROALKYL SIDE-CHAINS ;  STABLE HYDROPHOBIC SURFACES ;  CONTACT-ANGLE HYSTERESIS ;  SPECTROSCOPY SFG-VS ;  VIBRATIONAL SPECTROSCOPY ;  2-PERFLUOROOCTYLETHYL METHACRYLATE ;  POLYMER SURFACES ;  BLOCK-COPOLYMERS ;  MOLECULAR-ORIENTATION
语种: 英语
WOS记录号: WOS:000255134300017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141128
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Zhejiang Sci Tech Univ, Dept Chem, Key Lab Adv Text Mat & Mfg Technol, Educ Minist, Hangzhou, Peoples R China
2.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China

Recommended Citation:
Wang, Xiaofang,Ni, Huagang,Xue, Dongwu,et al. Solvent effect on the film formation and the stability of the surface properties of poly(methyl methacrylate) end-capped with fluorinated units[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2008,321(2):373-383.
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