Influence of annealing on structure of Nylon 11

	Influence of annealing on structure of Nylon 11
	Zhang QZ ; Mo ZS ; Liu SY ; Zhang HF
刊名	macromolecules
	2000
卷号	33 期号:16 页码:5999-6005
关键词	X-RAY-SCATTERING CRYSTAL-STRUCTURE INTERPHASE POLYMERS
ISSN号	0024-9297
通讯作者	mo zs
中文摘要	differential scanning calorimeter (dsc), wide-angle x-ray diffraction (waxd), small-angle x-ray scattering (saxs), and density techniques have been used to investigate the structural parameters of the solid state of nylon 11 annealed at different temperatures. the equilibrium heat of fusion delta h-m(0) and equilibrium melting temperature t-m(0) were estimated to be 189.05 j g(-1) and 202.85 degrees c respectively by using the hoffman-weeks approach. the degree of crystallinity (w-c,w-x) ranged approximately 24-42% was calculated by waxd and compared with those by calorimetry (w-c,w-h) and density (w-c,w-d) measurements. the radius of gyration r-g, crystalline thickness l-c, noncrystalline thickness l-a, long period l, semiaxes of the particles (a, b), electron-density difference between the crystalline and noncrystalline regions eta(c) - eta(a), and the invariant q increased with increasing annealing temperature. the analysis of the saxs data was based upon the particle characteristic function and the one-dimensional electron-density correlation function. an interphase region existed between the crystalline and noncrystalline region with a clear dimension of about 2 nm for semicrystalline nylon 11. instead of the traditional two-phase model, a three-phase model has been proposed to explain these results by means of saxs.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000088691700039
公开日期	2010-11-04
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/19645]
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	Zhang QZ,Mo ZS,Liu SY,et al. Influence of annealing on structure of Nylon 11[J]. macromolecules,2000,33(16):5999-6005.
APA	Zhang QZ,Mo ZS,Liu SY,&Zhang HF.(2000).Influence of annealing on structure of Nylon 11.macromolecules,33(16),5999-6005.
MLA	Zhang QZ,et al."Influence of annealing on structure of Nylon 11".macromolecules 33.16(2000):5999-6005.