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OverviewRaum ist demnach beim System PST-Cyclo- hexan um einen Faktor 1,44 gro13er als beim The self-diffusion coefficient of Benzene and Cyclo- hexane in Polystyrene (PST) was investigated over a System PST-Benzol. Diesel' aus dem Verhalt- wide temperature and conccntration range. The nis del' Steigungen ermittelte Wert stimmt measurements were carried out by the spin-echo- recht gut mit dem aus dem Verhaltnis del' method applying the technique of time dependant and Van der-Waalsschen V olumina errechneten alternating field gradients. The data provided by the mentioned investigations Wert iiberein. were calculated according to the theory of free volume. The minimum free volume. which is needed for a site 3.5. Zur Phenylgruppenbeweglichkeit im. PST changing process, was determined on thc basis of these experimental results. The significant maximum Das Freie Volumen, das bis herab zu 70°C of the temperature dependence of thc free volume. linear mit sinkender Temperatur abnimmt, observed at 50 QC. revealed to be due to displacements steigt bei weiterer Temperaturerniedrigung of Phenyl-groups in PST. wieder an und zeigt im System PST-Benzol bei 55°C und im System PST -Cyclohexan Literatur bei 50°C ein ausgepragtes Maximum. Unter- halb 40°C falIt das Freie Volumen 1(0, T) 1) Fnjita, H., Adv. Polymer Sci. 3, 1 (l!J(il). 2) Fujita, H .. A. Kishimoto. and K. Matsumoto, wieder proportional zur Temperatur. Die Trans. Faraday Soc. 56, 424 (1960). Full Product DetailsAuthor: E.W. Fischer , F.H. MüllerPublisher: Steinkopff Darmstadt Imprint: Steinkopff Darmstadt Volume: 2 Dimensions: Width: 21.00cm , Height: 0.70cm , Length: 27.90cm Weight: 0.340kg ISBN: 9783798503434ISBN 10: 3798503435 Pages: 114 Publication Date: 01 January 1971 Audience: Professional and scholarly , Professional & Vocational Format: Paperback Publisher's Status: Active Availability: In Print ![]() This item will be ordered in for you from one of our suppliers. Upon receipt, we will promptly dispatch it out to you. For in store availability, please contact us. Language: German Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |