.png){kind=icon}
返回
Dynamics in Multicomponent Polyelectrolyte Solutions
.png){kind=icon}
PRE
AI
DOI：10.1021/ma802217m.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Double-network hydrogels (DN-gels) prepared from the combination of a moderately cross-linked anionic polyelectrolyte (poly(2-acrylamido-2-methyl-1-propanesulfonic acid), PAMPS) and an un-cross-linked linear polymer (polyacrylamide, PAAm) Solution show strong mechanical properties far superior to that of their individual Constituents. To determine the origin of the superior properties of DN-gels, we investigated the structure and the chain dynamics of model PAMPS/PAAm solution blends using small-angle neutron scattering and neutron spin-echo measurements. Akcasu's dynamic scattering theory fora multicomponent System is modified to include polyelectrolytes, and the resulting equation describes well the neutron spin-echo results over the entire wavevector ran,ye covered in our experiments, Parameters such as effective solvent viscosity were deduced from the measured data using the modified Akcasu equation. Both the relaxation time at large length scales (10-100 nm) and the segmental diffusion coefficient at short length scales (1-10 A) or the effective solvent viscosity show good accordance with the macroscopic rheological behavior of the solution blends.
Keyword:
DOUBLE-NETWORK HYDROGELS
NEUTRON SPIN-ECHO
TERNARY POLYMER-SOLUTIONS
HIGH MECHANICAL STRENGTH
WEAKLY CHARGED POLYMERS
HYDRODYNAMIC INTERACTIONS
ELECTROLYTE SOLUTIONS
SCATTERING PROPERTIES
MIXTURES
SURFACES
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
5.2
论文数:
3.7W
被引数:
9.4W
机构
引用论文
.png){kind=icon}
分享收藏
分享收藏
查看更多内容