Abstract
A new method is proposed for studying the relaxational properties of low molecular systems, based on the use of the phenomenon of electrostriction, i.e. the appearance of strain under the action of a non-uniform electric field on a dielectric. The electrostriction apparatus established provides a means of studying the development and decrease in strain with time for liquid and gel-like polymeric materials over a wide range of frequences (0.1–10 3 Hz) of the electric field, while the voltage is established by Ω-like pulses. Using silico-organic oligomers and gels as an example, relations are obtained for the retardation time as a function of frequency and the concentration and molecular mass of the oligomer in solution. A study of the gelation of polydimethylsiloxane shows that during formation of a three-dimensional network the retardation time first begins to increase, and is then decreased, attaining a maximum at the gel point.
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.
