Polymer Thermal and Acoustic Properties using Heterodyne Detected Transient Grating Technique

Year: 2011

Authors: Amirkhani M., Taschin A., Cucini R., Bartolini P., Leporini D., Torre R.

Autors Affiliation: Univ Ulm, Inst Expt Phys, D-89081 Ulm, Germany; European Lab Nonlinear Spect LENS, I-50019 Florence, Italy; CNR, Ist Nazl Ott, I-50125 Florence, Italy; Sincrotrone Trieste, I-34149 Trieste, Italy; Univ Pisa, Dip Fis Enrico Fermi, I-56127 Pisa, Italy; Univ Florence, Dip Fis Astron, I-50019 Florence, Italy.

Abstract: We investigated the acoustic and thermal features of a polymeric system by a heterodyne detected transient grating technique. We studied two polymers characterized by different molecular weights. Transient grating experiments could reveal a reliable series of information on sound velocity, acoustic damping time, and thermal diffusion of the polymers. The temperature and molecular weight dependence of the polymer acoustic and thermal properties are reported.

Journal/Review: JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS

Volume: 49 (9)      Pages from: 685  to: 690

KeyWords: amorphous; glass transition; light scattering; thermal properties
DOI: 10.1002/polb.22233

Citations: 8
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