Water-soluble sulfonated phenolic resins. III. Effects of degree of sulfonation and molecular weight on concrete workability

Kung Chung Hsu, Sheng Da Chen, Nan Su

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The effects of the degree of sulfonation (DS) and molecular weight (MW) of sulfonated phenolic resins (SPF) on the flow properties of cementitious materials were investigated. SPF resin was prepared from phenol, formaldehyde, and sodium bisulfide through a four-step reaction. It was found that an increase in either DS of MW would enhance the dispersion effects in the system. The results indicate that the fluidity of cement pastes and the workability of concrete increased with higher DS until the resin was fully sulfonated. For resins with sufficient sulfonation, the performance of cementitious materials would increase with increasing MW. Apparently, resins with MW of about 3 × 104 are most effective in promoting concrete properties in terms of workability and compressive strength.

Original languageEnglish
Pages (from-to)1762-1766
Number of pages5
JournalJournal of Applied Polymer Science
Volume76
Issue number12
DOIs
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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