Synthesis and Characterization of Polybenzoxazinone and its Prepolymer Using Gas Separation. Issue 24 (28th October 2013)

• Record Type: Journal Article
• Authors: Pientka, Zbyněk; Brozova, Libuše; Pulyalina, Alexandra Y.; Goikhman, Mikhail Y.; Podeshvo, Irina V.; Gofman, Iosif V.; Saprykina, Natalia N.; Polotskaya, Galina A.
• Is Part Of: Macromolecular chemistry and physics. Volume 214:Issue 24(2013:Dec.)
• Page Start: 2867
• Page End: 2874
• Publication Date: 2013-10-28
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; Synthetic products -- Periodicals; Macromolecules -- Periodicals; 547.7
• DOI: 10.1002/macp.201300436
• Languages: English
• ISSNs: 1022-1352

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Polybenz‐3, 1‐oxazinone‐4 (PBOZ) films are prepared via the thermal rearrangement of poly[(methylene‐<italic>bis</italic>‐anthranilamide) 4, 4′‐diphenyloxidicarboxylic acid] (PAA) films by heating to 300 °C. PAA is synthesized by low‐temperature polycondensation. The PBOZ film exhibits excellent mechanical properties and a high glass‐transition temperature. Conversion of PAA to PBOZ leads to an increase in the fractional free volume as a result of thermal dehydration and cyclization during membrane formation and due to the removal of residual solvent. The excess free volume in the PBOZ film is approximately 3–4% of the total volume. The gas permeability and selectivity of the PBOZ film is higher than that of the PAA film. The thermal rearrangement of polymers is recognized as a suitable method to improve separation efficiency. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg3zs18rsj" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>