Crystallization behavior and crystallite morphology control of poly(L-lactic acid) through N,N '-bis(benzoyl)sebacic acid dihydrazide

	Crystallization behavior and crystallite morphology control of poly(L-lactic acid) through N,N '-bis(benzoyl)sebacic acid dihydrazide
	Fan YQ ; Yu ZY ; Cai YH ; Hu DD ; Yan SF ; Chen XS ; Yin JB
刊名	polymer international
	2013
卷号	62 期号:4 页码:647-657
关键词	MULTIPLE MELTING BEHAVIOR BETA-NUCLEATING AGENT L-LACTIC ACID POLY(LACTIC ACID) ISOTHERMAL CRYSTALLIZATION ISOTACTIC POLYPROPYLENE CROSS-LINKING X-RAY FIBERS PHASE
ISSN号	0959-8103
通讯作者	yin jb
中文摘要	adding a nucleating agent is one of the best ways to accelerate the crystallization rate of poly(l-lactic acid) (plla) so as to obtain a high degree of crystallinity during the process, which will improve the heat distortion temperature of final products. in the work reported, n, n-bis(benzoyl)sebacic acid dihydrazide (bsad) was synthesized and used as a nucleating agent for plla. isothermal and non-isothermal crystallization behaviors were investigated using differential scanning calorimetry (dsc). the addition of bsad successfully enhances the crystallization rate of plla. a unique phase separation behavior of plla/bsad blends is found from dsc as well as from polarized optical microscopy, which explains the difference of optimal bsad concentration between isothermal and non-isothermal crystallization. this is the first recording of a phase separation peak in plla/nucleating agent blends using dsc. in thermogravimetric analysis, the enhanced thermal stability indicates that there are strong hydrogen bonds between bsad and plla matrix. bsad can dissolve in plla melt below its melting point through intermolecular hydrogen bonding with plla and self-assemble upon cooling, leading to the surface being capable of nucleating plla. different phase separation temperatures can be used to control the morphology of bsad, which finally determines the crystallite morphology of plla. (c) 2012 society of chemical industry
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000316632200015
公开日期	2014-04-16
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49948]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Fan YQ,Yu ZY,Cai YH,et al. Crystallization behavior and crystallite morphology control of poly(L-lactic acid) through N,N '-bis(benzoyl)sebacic acid dihydrazide[J]. polymer international,2013,62(4):647-657.
APA	Fan YQ.,Yu ZY.,Cai YH.,Hu DD.,Yan SF.,...&Yin JB.(2013).Crystallization behavior and crystallite morphology control of poly(L-lactic acid) through N,N '-bis(benzoyl)sebacic acid dihydrazide.polymer international,62(4),647-657.
MLA	Fan YQ,et al."Crystallization behavior and crystallite morphology control of poly(L-lactic acid) through N,N '-bis(benzoyl)sebacic acid dihydrazide".polymer international 62.4(2013):647-657.