DieneN-(2,4,6-Tribromophenyl)maleimide Copolymer Membranes for Pervaporation of Ethanol-Water Mixtures

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Title:DieneN-(2,4,6-Tribromophenyl)maleimide Copolymer Membranes for Pervaporation of Ethanol-Water Mixtures
Creators:
Lokaj, Jan
Bleha, Miroslav
Kovářová, Jana
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 59, 9, pp. 2000-2004

Abstract

<p>Alternating copolymers of butadiene or isoprene with <i>N</i>-(2,4,6-tribromophenyl)maleimide and the copolymer of chloroprene containing 42.7 mole % <i>N</i>-(2,4,6-tribromophenyl)maleimide structure units were synthesized by radical copolymerization. Along with copolymerization, the Diels-Alder addition of comonomers proceeded. DSC revealed some crosslinking of the copolymers occurring even at room temperature. Homogeneous membranes were prepared from the copolymers by solution casting and tested in pervaporation of variously concentrated aqueous ethanol. Separation factors of the membranes related to the preferentially transported water increased with increasing content of ethanol in solutions to be separated. In contrast to hydrophilic maleimide groups, the incorporated diene units lowered separation efficiency due to their affinity to ethanol.

Title:DieneN-(2,4,6-Tribromophenyl)maleimide Copolymer Membranes for Pervaporation of Ethanol-Water Mixtures
Creators:
Lokaj, Jan
Bleha, Miroslav
Kovářová, Jana
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:59
Number:9
Page Range:pp. 2000-2004
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19942000UNSPECIFIED
ID Code:626
Item Type:Article
Deposited On:06 Feb 2009 17:02
Last Modified:06 Feb 2009 16:02

Citation

Lokaj, Jan; Bleha, Miroslav; Kovářová, Jana (1994) DieneN-(2,4,6-Tribromophenyl)maleimide Copolymer Membranes for Pervaporation of Ethanol-Water Mixtures. Collection of Czechoslovak Chemical Communications, 59 (9). pp. 2000-2004. ISSN 0010-0765

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