Abstract
AbstractThe phase transition from the dilute‐good solvent (I) to the theta (I′) regimes, which does not exist in the earlier phase diagram presented by Flory and has not been detected by common methods such as intrinsic viscosity, was observed clearly by measurements of ultrasonic velocity in the MHz range. Furthermore, ultrasonic absorption measurements revealed that the thermal relaxation, due to local segmental motions, observed in phase I disappeared in phase I′. Ultrasonic methods allow us to ascertain the existence of a second‐order phase transition from phase I to phase I′ above the theta temperature in the phase diagram of polymer solutions. Copyright © 2004 Society of Chemical Industry
Sign-in/Register to access full text options 
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.
