Shear effects on crystalline structures of poly(L-lactide)

doi:10.1039/c3ce40466h

CORC > 化学研究所 > 中国科学院化学研究所

	Shear effects on crystalline structures of poly(L-lactide)
	Xiao, Peitao 1; Li, Hongfei 2; Huang, Shaoyong 3; Wen, Huiying 4; Yu, Donghong 5; Shang, Yingrui 1; Li, Jingqing 1; Wu, Zhonghua 6; An, Lijia 2; Jiang, Shichun 1
刊名	CRYSTENGCOMM
	2013
卷号	15 期号:39 页码:7914-7925
ISSN号	1466-8033
DOI	10.1039/c3ce40466h
英文摘要	The shearing effects of sheared polymer melts on their finally formed crystalline structures of poly(L-lactide) (PLLA) were investigated by means of small angle X-ray scattering (SAXS) and wide angle X-ray diffraction (WAXD). The results of WAXD prove that shear has no effects on the crystal structure of PLLA. The SAXS results demonstrate that both of the long period and the thickness of crystalline lamellae increase with rising shear rates when vertical to the shear direction, but remains constant when being parallel to the shear direction. The structural changes for samples prepared with different shear temperature or under the same shear strain but different shear rate were investigated. The mesophase of polymer melts and shearing effects on their pre-ordered phase turned out to be the key factor affecting the crystal structure of PLLA under different shearing conditions.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000324546900010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46867]
专题	中国科学院化学研究所
通讯作者	Xiao, Peitao
作者单位	1.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China 4.Northeast Forestry Univ, Coll Engn & Technol, Harbin 150040, Peoples R China 5.Aalborg Univ, Dept Biotechnol Chem & Environm Engn, DK-9000 Aalborg, Denmark 6.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Peitao,Li, Hongfei,Huang, Shaoyong,et al. Shear effects on crystalline structures of poly(L-lactide)[J]. CRYSTENGCOMM,2013,15(39):7914-7925.
APA	Xiao, Peitao.,Li, Hongfei.,Huang, Shaoyong.,Wen, Huiying.,Yu, Donghong.,...&Jiang, Shichun.(2013).Shear effects on crystalline structures of poly(L-lactide).CRYSTENGCOMM,15(39),7914-7925.
MLA	Xiao, Peitao,et al."Shear effects on crystalline structures of poly(L-lactide)".CRYSTENGCOMM 15.39(2013):7914-7925.