Structural reorganization in films of cellulose derivatives in the presence of colloidal particles

G. Evmenenko, C. J. Yu, S. Kewalramani, P. Dutta

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Water-cast films of two ethers of cellulose, hydroxypropylcellulose (HPC) and hydroxyethylcellulose (HEC), with dispersed silica particles, were deposited on flat substrates. X-ray specular reflectivity was used to characterize the structure of these solid ca. 1000 Å thick films as a function of the added colloidal fraction. It was shown that the structural changes resulting from increasing amounts of incorporated silica particles pass through distinctively different routes in the case of HPC- and HEC-based films. However, the structures in the two cases are similar at sufficiently high colloidal fraction.

Original languageEnglish (US)
Pages (from-to)6269-6273
Number of pages5
JournalPolymer
Volume45
Issue number18
DOIs
StatePublished - Aug 19 2004

Keywords

  • Cellulose derivatives
  • Silica particles
  • X-ray reflectivity

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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