Living lamellar crystal initiating polymerization and brittleness mechanism investigations based on crystallization during the ring-opening of cyclic butylene terephthalate oligomers

doi:10.1039/c2py20847d

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Living lamellar crystal initiating polymerization and brittleness mechanism investigations based on crystallization during the ring-opening of cyclic butylene terephthalate oligomers
	Zhang, Jianqiang 1,3; Wang, Zongbao 1; Wang, Bingjie 1; Gou, Quting 1; Zhang, Junwu 1; Zhou, Jian 1; Li, Ya 1,2; Chen, Peng 1; Gu, Qun 1
刊名	POLYMER CHEMISTRY
	2013
卷号	4 期号:5 页码:1648-1656
关键词	Brittleness Butenes Crystal structure Crystallization kinetics Fracture mechanics Living polymerization Oligomers Plasticity Cyclic butylene terephthalates Induction time Initiating polymerization Lamellar crystals Mechanism investigation Ring opening
ISSN号	1759-9954
DOI	10.1039/c2py20847d
英文摘要	The brittleness of polymerized cyclic butylene terephthalate (pCBT) is generally ascribed to its high crystallization degree and perfect crystal structure. Herein, a simple and effective method for improving the brittleness of pCBT is presented. Unlike other published toughening methods, this method did not decrease or destroy any of the natural advantages of cyclic butylene terephthalate oligomers (CBT) and its ring-opening polymerization (ROP). The melting behaviour and crystallization of CBT demonstrated that some CBT crystals were unable to melt completely during ROP. These un-melted crystals served as self-compatible nucleators and reduced the crystallization induction time of pCBT during ROP, they also plant many stress concentration points which result in the brittleness of pCBT, according to mechanical tests and crystallization kinetics. Finally, the "living lamellar crystal" initiating ROP and new brittleness mechanisms were proposed.
资助项目	Ningbo Key Laboratory of Polymer Materials[2010A22001]
WOS研究方向	Polymer Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000314478800042
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34796]
专题	石油化工学院
通讯作者	Wang, Zongbao
作者单位	1.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo Key Lab Polymer Mat, Ningbo 315201, Zhejiang, Peoples R China 2.Ningbo Univ Technol, Inst Mat Engn, Ningbo 315016, Zhejiang, Peoples R China 3.Lanzhou Univ Technol, Sch Petrochem Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jianqiang,Wang, Zongbao,Wang, Bingjie,et al. Living lamellar crystal initiating polymerization and brittleness mechanism investigations based on crystallization during the ring-opening of cyclic butylene terephthalate oligomers[J]. POLYMER CHEMISTRY,2013,4(5):1648-1656.
APA	Zhang, Jianqiang.,Wang, Zongbao.,Wang, Bingjie.,Gou, Quting.,Zhang, Junwu.,...&Gu, Qun.(2013).Living lamellar crystal initiating polymerization and brittleness mechanism investigations based on crystallization during the ring-opening of cyclic butylene terephthalate oligomers.POLYMER CHEMISTRY,4(5),1648-1656.
MLA	Zhang, Jianqiang,et al."Living lamellar crystal initiating polymerization and brittleness mechanism investigations based on crystallization during the ring-opening of cyclic butylene terephthalate oligomers".POLYMER CHEMISTRY 4.5(2013):1648-1656.