Abstract
The most reliable method to determine the chemical-composition distribution of random copolymers may be cross fractionation. To carry out cross fractionation, it is necessary to find two different solvent—nonsolvent systems. The ethylene carbonate—ethylenecyanohydrin system together with the methyl ethyl ketone—cyclohexane system reported previously were found to be appropriate for cross fractionation of styrene—acrylonitrile copolymers. An example of chemical-composition distribution determination of commercial styrene—crylonitrile random copolymers by cross fractionation using both systems is presented.
Full Text
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call