Polymer physics and PCE superplasticizers revisited

Yanwei Wang, Xin Shu, Yong Yang, Qianping Ran, Jiaping Liu

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)

Abstract

Conformational properties of comb-shaped copolymer polyelectrolytes such as polycarboxylate ether-based superplasticizers (PCEs) in aqueous solutions and at liquid/solid interfaces are fundamental to their performances as polymeric dispersants. Pioneering studies of Flatt and coworkers have demonstrated the great relevance of polymer theory to the PCE community. The present work revisits this topic with an emphasis on the semi-flexible characteristics of the anionic backbone decorated with flexible side chains. A simple physical picture, where the backbone adopts a “train-like” conformation on the surface, effectively as a two-dimensional worm-like chain, with the side chains mimicking surface-tethered chains, is presented for PCEs in the strongly adsorbed state.

Original languageEnglish
Pages305-318
Number of pages14
Publication statusPublished - Jan 1 2018
Event12th International Conference on Superplasticizers and other Chemical Admixtures in Concrete, ICSP 2018 - Beijing, China
Duration: Oct 28 2018Oct 31 2018

Conference

Conference12th International Conference on Superplasticizers and other Chemical Admixtures in Concrete, ICSP 2018
CountryChina
CityBeijing
Period10/28/1810/31/18

Keywords

  • Adsorption layer thickness
  • Comb architecture
  • Persistence length
  • Polyelectrolyte
  • Polymer conformation
  • Radius of gyration
  • Wormlike chain

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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