DIFFUSION OF LONG CHAINS THROUGH A POROUS THIN GEL NETWORK

张广照

Your Location：

Home >

Browse articles >

DIFFUSION OF LONG CHAINS THROUGH A POROUS THIN GEL NETWORK

Rapid Communication | Updated：2021-06-21

- DIFFUSION OF LONG CHAINS THROUGH A POROUS THIN GEL NETWORK
- DIFFUSION OF LONG CHAINS THROUGH A POROUS THIN GEL NETWORK
- 高分子科学（英文版） 2007年第5期页码：441-445
- Affiliations：
  
  1. The Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical Physics The University of Science and Technology of China
  2. Hefei 230026
- Author bio：
- Funds：
  
  This work was financially supported by the Hong Kong Special Administration Region Earmarked（Grants No.CUHK4025/04P,2160242）();the Chinese Academy of Sciences（Special Grant KJCX2-SW-H14）();the National Natural Science Foundation of China（Key Grant 20574065）.()
- DOI：
  中图分类号： O648.1
- 纸质出版：2007
- Accepted：
Scan QR Code
[1]张广照.DIFFUSION OF LONG CHAINS THROUGH A POROUS THIN GEL NETWORK[J].Chinese Journal of Polymer Science,2007(05):441-445.

DIFFUSION OF LONG CHAINS THROUGH A POROUS THIN GEL NETWORK[J]. 2007, (5): 441-445.
[1]张广照.DIFFUSION OF LONG CHAINS THROUGH A POROUS THIN GEL NETWORK[J].Chinese Journal of Polymer Science,2007(05):441-445. DOI：

DIFFUSION OF LONG CHAINS THROUGH A POROUS THIN GEL NETWORK[J]. 2007, (5): 441-445. DOI：

摘要

<正>Using a core（142 nm）made of linear polystyrene（PS）chains as a seed

we further polymerized a thin layer of cross-linked PS shell（7 nm）on it in water to form a core-shell particle.Such a particle swells in toluene

which enables linear PS chains inside the core to gradually diffuse out through the porous shell.Using a combination of static and dynamic laser light scattering

we examined the chain diffusion process by following the change of the scattering intensity（i.e.the average molar mass of the particles）.For the first time

we have revealed that the diffusion exhibits three stages.In the first stage

the chain diffusion through the shell is even faster than their translational diffusion in a dilute solution.The three stages respectively correspond to the change of the solution in the core from concentrated to semidilute and then from semidilute to dilute.

Abstract

Using a core（142 nm）made of linear polystyrene（PS）chains as a seed

we further polymerized a thin layer of cross-linked PS shell（7 nm）on it in water to form a core-shell particle.Such a particle swells in toluene

which enables linear PS chains inside the core to gradually diffuse out through the porous shell.Using a combination of static and dynamic laser light scattering

we examined the chain diffusion process by following the change of the scattering intensity（i.e.the average molar mass of the particles）.For the first time

we have revealed that the diffusion exhibits three stages.In the first stage

关键词

Keywords

references

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

Sequence-encoded Conformation Pathways in Viscoelastic Microphase Separation of Multiblock Copolymers

Enhanced Segment Mobility Promotes Stereocomplex Crystallization in Polymer Blends via Elevated Segmental Miscibility

Durable Anti-fogging and Abrasion-resistant Coatings Based on Polyoxometalates-Hydrophilic Resin Composites with Enhanced Cohesion and Adhesion

Multiple-Responsive Chiral Hydrogels from Helical Dendronized Poly(phenylacetylene)s

Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units