Dynamic light-scattering characterization of the molecular weight distribution of a broadly distributed phenolphthalein poly(aryl ether ketone)
文献类型:期刊论文
作者 | Siddiq M ; Wu C ; Li BY |
刊名 | journal of applied polymer science
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出版日期 | 1996 |
卷号 | 60期号:11页码:1995-1999 |
ISSN号 | 0021-8995 |
中文摘要 | using a recently developed laser light-scattering (lls) procedure, we accomplished the characterization of a broadly distributed unfractionated phenolphthalein poly(aryl ether ketone) (pek-c) in chcl3 at 25 degrees c. the laplace inversion of precisely measured intensity-intensity time correlation function from dynamic lls leads us first to an estimate of the characteristic line-width distribution g(gamma) and then to the translational diffusion coefficient distribution g(d). by using a previously established calibration of d (cm(2)/s) = 2.37 x 10(-4)m(-0.57), were able to convert g(d) into a differential weight distribution f(w)(m). the weight-average molecular weight m(w) calculated from f(w)(m) agrees well with that directly measured in static lls. our results indicate that both the calibration and lls procedure used in this study are ready to be applied as a routine method for the characterization of the molecular weight distribution of pek-c. (c) 1996 john wiley & sons, inc. |
收录类别 | SCI收录期刊论文 |
语种 | 英语 |
公开日期 | 2010-12-22 ; 2011-06-09 |
源URL | [http://ir.ciac.jl.cn/handle/322003/25451] ![]() |
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 | Siddiq M,Wu C,Li BY. Dynamic light-scattering characterization of the molecular weight distribution of a broadly distributed phenolphthalein poly(aryl ether ketone)[J]. journal of applied polymer science,1996,60(11):1995-1999. |
APA | Siddiq M,Wu C,&Li BY.(1996).Dynamic light-scattering characterization of the molecular weight distribution of a broadly distributed phenolphthalein poly(aryl ether ketone).journal of applied polymer science,60(11),1995-1999. |
MLA | Siddiq M,et al."Dynamic light-scattering characterization of the molecular weight distribution of a broadly distributed phenolphthalein poly(aryl ether ketone)".journal of applied polymer science 60.11(1996):1995-1999. |
入库方式: OAI收割
来源:长春应用化学研究所
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