Abstract
AbstractStereocomplex formation of isotactic and syndiotactic polymethylmethacrylate (PMMA) could be demonstrated using X‐ray, NMR, and viscosity techniques. In this paper it is shown by measurements of viscosity and investigation of swelling properties that the association of isotactic and syndiotactic sequences of the polymer occurs as well in the solutions and gels of atactic PMMA. From the temperature dependence of the reduced specific viscosity and the swelling it can be deduced that association causes network formation due to microcrystalline regions which have a melting point range. In solutions of toluene with mixtures of isotactic and syndiotactic PMMA an intermolecular association, with atactic PMMA an intramolecular association is discussed. In chloroform no association could be observed.
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
