In situ investigations on enzymatic degradation of poly(epsilon-caprolactone)

doi:10.1016/j.polymer.2007.08.054

CORC > 化学研究所 > 中国科学院化学研究所

	In situ investigations on enzymatic degradation of poly(epsilon-caprolactone)
	Hou, Yi ; Chen, Jing ; Sun, Peijian ; Gan, Zhihua ; Zhang, Guangzhao
刊名	POLYMER
	2007-10-05
卷号	48 期号:21 页码:6348-6353
关键词	Quartz Crystal Microbalance Poly(Epsilon-caprolactonc) Degradation
ISSN号	0032-3861
DOI	10.1016/j.polymer.2007.08.054
英文摘要	The enzymatic degradation of poly(epsilon-caprolactone) (PCL) has been investigated by using quartz crystal microbalance with dissipation (QCM-D) and surface plasmon resonance (SPR) in situ. The frequency and dissipation responses of QCM-D and the SPR signal responses can well describe the weight loss and the morphological changes of a PCL film. Our experiments reveal that the degradation has much dependence on the crystallinity and morphology of PCL. PCL with lower crystallinity (45%) and small spherulites degrades in a way of layer-by-layer. Both QCM-D and SPR measurements demonstrate that the degradation is of first-order. However, PCL with higher crystallinity (55%) and larger spherulites exhibits a more complex degradation behavior, namely, the degradation in crystalline region lags behind than that in amorphous region, leading to a microporous structure. (c) 2007 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000250492000020
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/62175]
专题	中国科学院化学研究所
通讯作者	Gan, Zhihua
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing 100080, Peoples R China 2.Univ Sci & Technol China, Dept Chem Phys, Hefei Natl Lab Phys Sci & Microscale, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Hou, Yi,Chen, Jing,Sun, Peijian,et al. In situ investigations on enzymatic degradation of poly(epsilon-caprolactone)[J]. POLYMER,2007,48(21):6348-6353.
APA	Hou, Yi,Chen, Jing,Sun, Peijian,Gan, Zhihua,&Zhang, Guangzhao.(2007).In situ investigations on enzymatic degradation of poly(epsilon-caprolactone).POLYMER,48(21),6348-6353.
MLA	Hou, Yi,et al."In situ investigations on enzymatic degradation of poly(epsilon-caprolactone)".POLYMER 48.21(2007):6348-6353.