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Optical activity measurements on solids. 3. Non‐optically active synthetic polymers
Author(s) -
Xi Fu,
Bartus Jan,
Vogl Otto
Publication year - 1993
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990310210
Subject(s) - crystallinity , polymer , materials science , optical rotation , specific rotation , optically active , particle (ecology) , optics , analytical chemistry (journal) , composite material , chemistry , physics , chromatography , organic chemistry , geology , oceanography
Measurements of the non‐existence of optical activity in suspensions of synthetic optically inactive polymer powders were made to evaluate the limitation of our measurement technique. A particle size of less than 150μm was necessary to obtain accurate measurements. A high degree of crystallinity interfered with the measurements and gave erratic results. In all cases, for various types of commonly used polymers, the optical activity measurements with a zero value for optical rotation demonstrated that reliable measurements could be made with an accuracy of about ±3%.