Controlling crystal polymorphism of isotactic poly(1-butene) by incorporating long chain branches

doi:10.1039/c8sm01793j

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Controlling crystal polymorphism of isotactic poly(1-butene) by incorporating long chain branches
	Maimaitiming, A ; Zhang, MJ ; Hu, JT ; Wu, GZ
刊名	SOFT MATTER
	2018
卷号	14 期号:44 页码:8872-8878
关键词	CRYSTALLIZATION BEHAVIOR PHASE-TRANSFORMATION FORM-II METALLOCENE CATALYSTS MECHANICAL-PROPERTIES SINGLE-CRYSTALS POLYPROPYLENE POLYBUTENE-1 TRANSITION MORPHOLOGY
ISSN号	1744-683X
DOI	10.1039/c8sm01793j
文献子类	期刊论文
英文摘要	Isotactic poly(1-butene) (iPB-1) is a high performance plastic with outstanding properties, such as flexibility, superior creep, environmental stress cracking and abrasive resistance. However, it exhibits a complex crystal polymorphism and polymorphic transformation behavior, which has limited its commercial development. In this paper, the incorporation of long chain branches (LCBs) causes coil contraction in the melt, which favors the direct melt-crystallization of form III that was generally crystallized from solutions and made of unconventional highly twined lamellae. Consequently, low-to-moderately branched iPB-1 samples as-crystallize from the melt into mixtures of form II and form III by compression-molding and fast cooling of the melt to room temperature, and the fraction of crystals of form III (f(III)) increases with increasing concentration of LCBs, whereas highly branched samples can as-crystallize into pure form III with uniform crystal size distribution. The corresponding thermomechanical properties can be modified by controlling f(III).
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/30886]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Maimaitiming, A,Zhang, MJ,Hu, JT,et al. Controlling crystal polymorphism of isotactic poly(1-butene) by incorporating long chain branches[J]. SOFT MATTER,2018,14(44):8872-8878.
APA	Maimaitiming, A,Zhang, MJ,Hu, JT,&Wu, GZ.(2018).Controlling crystal polymorphism of isotactic poly(1-butene) by incorporating long chain branches.SOFT MATTER,14(44),8872-8878.
MLA	Maimaitiming, A,et al."Controlling crystal polymorphism of isotactic poly(1-butene) by incorporating long chain branches".SOFT MATTER 14.44(2018):8872-8878.