41 Swelling studies of super water retainer acrylamide/crotonic acid hydrogels crosslinked by trimethylolpropane triacrylate and 1,4-butanediol dimethacrylate

Author(s): Karadag, E; Saraydin, D

Title: Swelling studies of super water retainer acrylamide/crotonic acid hydrogels crosslinked by trimethylolpropane triacrylate and 1,4-butanediol dimethacrylate

Source: POLYMER BULLETIN, 48 (3): 299-307 MAY 2002

Language: English

Document Type: Article

Keywords Plus: COPOLYMERS; AGROCHEMICALS; BEHAVIOR; NETWORKS; RELEASE

Abstract: Superswelling acrylamide/crotonic acid (AAm/CA) hydrogels were prepared by free radical polymerization in aqueous solution of acrylamide (AAm) with crotonic acid (CA) as comonomer. For each copolymerization, four different composition of CA and a concentration of multifunctional crosslinkers such as trimethylolpropane triacrylate (TMPTA) and 1,4-butanediol dimethacrylate (BDMA) were used. As a result of dynamic swelling tests, the influence of the crosslinkers and the relative content of CA on the swelling properties were examined. AAm/CA hydrogels were swelled in the range of 1520-2980% in water, while AAm hydrogels swelled as 780 and 1360%. Equilibrium water content of AAm/CA hydrogels was calculated in the range of 88.73 and 96.75%. Water uptake of hydrogels was followed non-Fickian type diffusion.

Addresses: Adnan Menderes Univ, Dept Chem, TR-09010 Aydin, Turkey; Cumhuriyet Univ, Dept Chem, TR-58140 Sivas, Turkey

Reprint Address: Karadag, E, Adnan Menderes Univ, Dept Chem, TR-09010 Aydin, Turkey.

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Cited Reference Count: 24

Times Cited: 1

Publisher: SPRINGER-VERLAG

Publisher Address: 175 FIFTH AVE, NEW YORK, NY 10010 USA

ISSN: 0170-0839

29-char Source Abbrev.: POLYM BULL

ISO Source Abbrev.: Polym. Bull.

Source Item Page Count: 9

Subject Category: POLYMER SCIENCE

ISI Document Delivery No.: 565YP