Surface bio-modification of poly(hydroxybutyrate-co-hydroxyhexanoate) and its aging effect

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	Surface bio-modification of poly(hydroxybutyrate-co-hydroxyhexanoate) and its aging effect
	F. Shen; E. L. Zhang; Z. J. Wei
	2009
发表期刊	Colloids and Surfaces B-Biointerfaces
ISSN	0927-7765
卷号	73 期号:2 页码:302-307
摘要	In this work, poly(hydroxybutyrate-co-hydroxyhexanoate) (PHBHHx) film was fabricated by a solution-casting method and subsequently was modified by NaOH treatment to improve the surface hydrophilic property. Surface properties including hydrophilicity, surface appearance and functional groups were characterized by water contact angle measurement, scanning electron microscopy (SEMI) and X-ray photoelectron spectroscopy (XPS). The results showed the hydrophilicity of PHBHHx film was obviously improved by the NaOH treatment due to the topography changes promoted by the NaOH-etching and the introduction of polar groups included hydroxyl and carboxyl on the topmost surface layers. However, the modified film exhibited an aging effect: the hydrophilicity decreases with time elapsed during storage. It was found that the aging rate was strongly dependent on the crystallinity of the film and the storage environment. The sample with high-crystallinity lost hydrophilic property slower than that with low-crystallinity. Hydrophilic and low-temperature environment also prevented the modified PHBHHx from fast losing of the hydrophilicity. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[shen, feng; wei, zunjie] harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china. [zhang, erlin] chinese acad sci, inst met res, shenyang 110016, peoples r china.;shen, f (reprint author), harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china;fengshen0513@gmail.com
关键词	Poly(Hydroxybutyrate-co-hydroxyhexanoate) Hydrophilicity Crystallinity Surface Modification Poly 3-hydroxybutyrate-co-3-hydroxyhexanoate Microbial Polyhydroxyalkanoates Mechanical-properties Plasma Treatment Pressure Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) Membranes Behavior Cells Films
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WOS记录号	WOS:000269598900021
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32266
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Shen,E. L. Zhang,Z. J. Wei. Surface bio-modification of poly(hydroxybutyrate-co-hydroxyhexanoate) and its aging effect[J]. Colloids and Surfaces B-Biointerfaces,2009,73(2):302-307.
APA	F. Shen,E. L. Zhang,&Z. J. Wei.(2009).Surface bio-modification of poly(hydroxybutyrate-co-hydroxyhexanoate) and its aging effect.Colloids and Surfaces B-Biointerfaces,73(2),302-307.
MLA	F. Shen,et al."Surface bio-modification of poly(hydroxybutyrate-co-hydroxyhexanoate) and its aging effect".Colloids and Surfaces B-Biointerfaces 73.2(2009):302-307.