✦ LIBER ✦

Investigations of the concentration effect of intramolecular mobility of polystyrene in carbon tetrachloride and chloroform solutions on vibrations of the phenyl group

✍ Scribed by M. Szyncel

Publisher: John Wiley and Sons
Year: 1982
Tongue: English
Weight: 378 KB
Volume: 33
Category: Article
ISSN: 0323-7648
DOI: 10.1002/actp.1982.010331001

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Investigations of relative intensity, line width and depolarization ratio of atactic polystyrene have been performed for the Raman lines 622 cm^−1^ (bending) and 1 002 cm^−1^ (Stretching). The measurements were performed with solutions in carbon tetrachloride and chloroform of different concentrations. The concentration effect observed is interpreted in terms of amplitude changes and vibrational correlation time of the investigated vibrational modes with simultaneous change of the chain conformation.

📜 SIMILAR VOLUMES

Volumetric concentration effects of poly

Volumetric concentration effects of polystyrene in carbon tetrachloride and chloroform solutions

✍ M. Szyncel 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 275 KB 👁 1 views

Effects of urea, Na+ and Li+ ions on the

Effects of urea, Na+ and Li+ ions on the kinetics and mechanism of intramolecular general base-catalyzed glycolysm of ionized phenyl salicylate in ethane-1,2-diol–acetonitrile solvents at a constant water concentration

✍ M. Niyaz Khan 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 120 KB 👁 2 views

Pseudo-first-order rate constants (k 1 ) for the reaction of ethane-1,2-diol (DOL) with ionized phenyl salicylate (PS À ), obtained in mixed DOL-CH 3 CN solvent at constant [H 2 O] and [NaOH], obey the relationship , where a is the apparent second-order rate constant, K A is the association constan