Confined crystallization and phase transition in semi-rigid chitosan containing long chain alkyl groups

	Confined crystallization and phase transition in semi-rigid chitosan containing long chain alkyl groups
	Zhou Y ; Shi HF ; Zhao Y ; Men YF ; Jiang SC ; Rottstegge J ; Wang DJ
刊名	crystengcomm
	2011
卷号	13 期号:2 页码:561-567
关键词	COMB-LIKE POLYMERS X-RAY-SCATTERING FLEXIBLE SIDE-CHAINS C-13 CHEMICAL-SHIFTS RIGID-ROD POLYMERS SOLID-STATE NORMAL-TRITRIACONTANE SEGMENTAL DYNAMICS MOLECULAR-MOTION DEFECT STRUCTURE
ISSN号	1466-8033
通讯作者	shi hf
中文摘要	we report on the confined crystallization and polymorphism behavior of a series of comb-like polymers (cs(n)cs), which were prepared via an n-alkylation reaction between chitosan and n-alkyl bromides (n = 14-20). analysis by temperature-dependent synchrotron x-ray scattering, fourier transform infrared spectroscopy (ftir), solid-state nuclear magnetic resonance spectroscopy (nmr) and differential scanning calorimetry (dsc) revealed that the phase transition and crystalline structure were sensitively controlled by the length scale and the confinement state of alkyl groups, which could induce different packing structures and conformational variation behavior. remarkably, phase transition from orthorhombic-hexagonal to monoclinic structure was observed for these side-chain polymers, demonstrating that the length scales of alkyl groups and the microstructure of polymeric backbones play an important role in the evolution of packing mode of nano-crystallites.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000285514000030
公开日期	2012-06-12
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/45082]
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	Zhou Y,Shi HF,Zhao Y,et al. Confined crystallization and phase transition in semi-rigid chitosan containing long chain alkyl groups[J]. crystengcomm,2011,13(2):561-567.
APA	Zhou Y.,Shi HF.,Zhao Y.,Men YF.,Jiang SC.,...&Wang DJ.(2011).Confined crystallization and phase transition in semi-rigid chitosan containing long chain alkyl groups.crystengcomm,13(2),561-567.
MLA	Zhou Y,et al."Confined crystallization and phase transition in semi-rigid chitosan containing long chain alkyl groups".crystengcomm 13.2(2011):561-567.