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Selective Guest Uptake from Solvent Mixtures in the Clathrate Phase of Syndiotactic Polystyrene

✍ Scribed by Yukihiro Uda; Fumitoshi Kaneko; Tatsuya Kawaguchi

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 150 KB
Volume: 25
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200400328

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✦ Synopsis

Abstract

Summary: Selective absorption uptake during the guest‐exchange processes in the δ form of syndiotactic polystyrene (sPS) was confirmed by IR spectroscopy. When films of the δ form were immersed in hexane/decane or chloroform/decane mixtures, decane molecules were incorporated preferentially in the δ form. Sorbate uptake by the δ form was greatly accelerated when the sorbate was mixed with a solvent penetrable to the amorphous region of sPS.

Concentration changes in a δ‐form film during sorption processes: sorption of a chloroform(D)/decane(H) mixture (1:1 molar ratio).

magnified imageConcentration changes in a δ‐form film during sorption processes: sorption of a chloroform(D)/decane(H) mixture (1:1 molar ratio).

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