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Correlation between microhardness and optical anisotropies and crystallinity in lamellar regenerated cellulose
Author(s) -
Pinto Gabriel,
Lorenzo Vicente
Publication year - 1998
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.10207
Subject(s) - crystallinity , materials science , indentation hardness , lamellar structure , composite material , birefringence , polymer , cellulose , anisotropy , indentation , chemical engineering , optics , microstructure , physics , engineering
Abstract An experimental study about the effect of the crystallinity on the birefringence and microhardness of regenerated cellulose tubular films is reported. The degrees of crystallinity of samples varied between 0.53 and 0.66. It was demonstrated that for the polymeric films studied there was an excellent agreement between crystallinity and optical and microhardness anisotropies, showing that micro‐indentation hardness, scarcely used but rapid and nondestructive, is a suitable technique for characterizing the degree of order in this polymer.