Laser light scattering of the molecular weight distribution of unfractionated phenolphthalein poly(aryl ether sulfone)
文献类型：期刊论文
| 作者 | Siddiq M ; Li BY ; Wu C |
| 刊名 | journal of polymer science part b-polymer physics
 |
| 出版日期 | 1997 |
| 卷号 | 35期号:1页码:85-90 |
| ISSN号 | 0887-6266 |
| 中文摘要 | two unfractionated samples of phenolphthalein poly( aryl ether sulfone) (pes-c) were characterized in chcl3 at 25 degrees c by applying a recently developed laser light-scattering (lls) procedure. the laplace inversion of precisely measured intensity-intensity time correlation function lead us first to an estimate of the characteristic line-width distribution g(gamma) and then to the translational diffusion coefficient distribution g(d). a combination of static and dynamic lls results enabled us to determine d = (2.69 x 10(-4))m(-0.553), which agrees with the calibration of d = (2.45 x 10(-4))m(-0.55) previously established by a set of narrowly distributed pes-c samples. using this newly obtained scaling between d and m, we were able to convert g(d) into a differential weight distribution f(w)(m) for the two pes-c samples. the weight-average molecular weights calculated from f(w)(m) are comparable to that obtained directly from static lls. our results showed that using two broadly distributed samples instead of a set of narrowly distributed samples have provided not only similar final results, but also a more practical method for the pes-c characterization. (c) 1997 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/322003/24469]  |
| 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,Li BY,Wu C. Laser light scattering of the molecular weight distribution of unfractionated phenolphthalein poly(aryl ether sulfone)[J]. journal of polymer science part b-polymer physics,1997,35(1):85-90. |
| APA | Siddiq M,Li BY,&Wu C.(1997).Laser light scattering of the molecular weight distribution of unfractionated phenolphthalein poly(aryl ether sulfone).journal of polymer science part b-polymer physics,35(1),85-90. |
| MLA | Siddiq M,et al."Laser light scattering of the molecular weight distribution of unfractionated phenolphthalein poly(aryl ether sulfone)".journal of polymer science part b-polymer physics 35.1(1997):85-90. |
入库方式： OAI收割
来源：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。