Distribution of Carboxyl Groups in Carboxymethylated Cotton Fibers

Judit Borsa, Vasudha Ravichandran, S. Kay Obendorf

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Cotton cellulose was partially carboxymethylated by a one-bath method using monochloroacetic acid and sodium hydroxide. A method was developed to study the extent of the carboxymethylation of cellulose within the cotton fibers using scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDX). Uranyl nitrate was used as a stain. Scanning electron photomicrographs revealed that the carboxymethylation of cellulose occurred throughout the cotton fiber cross section. However, the X-ray microanalysis data indicated a variation in the extent of the reaction among the morphological regions that have different chemical accessibility.

Original languageEnglish
Pages (from-to)203-207
Number of pages5
JournalJournal of Applied Polymer Science
Volume72
Issue number2
DOIs
Publication statusPublished - Apr 11 1999

Keywords

  • Carboxymethylation
  • Cotton
  • Distribution in cross section
  • Energy-dispersive X-ray analysis
  • Kassenbeck's structure
  • Scanning electron microscopy

ASJC Scopus subject areas

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

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