✦ LIBER ✦

Study on segmental interaction parameter between ethylene and vinyl acetate monomer units of EVA by inverse gas chromatography

✍ Scribed by Ya Guo; Bin Gu; Zhixiang Lu; Qiangguo Du

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 109 KB
Volume: 71
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19990131)71:5<693::aid-app3>3.0.co;2-y

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✦ Synopsis

A method of analysis of inverse gas chromatography (IGC) measurements on copolymers to calculate segmental interaction parameters was proposed. Poly-(ethylene-co-vinyl acetate) (EVA), poly(vinyl acetate) (PVAc), and dotriacontane (C32) were studied at 120°C with eight different probes of varying polarities by IGC. The value of the segmental interaction parameter between ethylene units and vinyl acetate units in EVA was found to be 1.18, which is consistent with the literature values.