STRUCTURAL-CHANGES ON CYANOETHYLATION OF CELLULOSE

X-ray diffraction patterns of differently substituted cyanoethyl cellu lose are recorded. The crystallographic characteristics, namely crysta llinity index (CrI), d-spacing changes, and extent of order variation have been estimated. The topography of fully substituted samples surfa ce is explored using Scanning Electron Microscope. Such variations in the crystallographic parameters have been correlated with the degree o f substitution.