HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIOR

Hydrogels of 2-(dimethylamino)ethylacrylate (DMAEA) with N,N'-dimethyl acrylamide (NNDMAAm) were synthesized by solution free-radical polymerization at different feed mol ratios. These copolymers were completely water-insoluble. Polymers were characterized by elemental analysis, FT-IR spectrosc...

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Autores principales:	POOLEY,S.AMALIA, RIVAS,BERNABÉ L, PIZARRO,GUADALUPE DEL C
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2013
Materias:	Hydrogels radical polymerization swelling stimuli-sensitive polymers
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000100021
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spelling	oai:scielo:S0717-970720130001000212014-09-09HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIORPOOLEY,S.AMALIARIVAS,BERNABÉ LPIZARRO,GUADALUPE DEL C Hydrogels radical polymerization swelling stimuli-sensitive polymers Hydrogels of 2-(dimethylamino)ethylacrylate (DMAEA) with N,N'-dimethyl acrylamide (NNDMAAm) were synthesized by solution free-radical polymerization at different feed mol ratios. These copolymers were completely water-insoluble. Polymers were characterized by elemental analysis, FT-IR spectroscopy, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The monomer reactivity ratios were determined by Kelen-Tüdos method. According to that, the monomer reactivity ratios for poly(DMAEA-co-NNDMAAm) were r1 = 0.288 (M1=DMAEA) and r2 = 1.460 (M2=NNDMAAm), (r1x r 2 = 0.419). Low critical solution temperatures (LCST) values of hydrogels are around 60°C, which was significantly higher than that poly(NIPAAm) and increased with increasing of hydrophilic DMAEA unit content in the copolymers. The hydrogels achieved a water-absorption value of 188 g of water/g of dry polymer (xerogel) in distilled water. Effects of time, temperature, pH, salt concentration, cross-linking concentration, and solvent polarity on the water absorption were studied. Experimental results indicated that the copolymer poly(DMAEA-co-NNDMAAm) with a feed mol ratio 2:1 presents the best swelling properties.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.58 n.1 20132013-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000100021en10.4067/S0717-97072013000100021
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Hydrogels radical polymerization swelling stimuli-sensitive polymers
spellingShingle	Hydrogels radical polymerization swelling stimuli-sensitive polymers POOLEY,S.AMALIA RIVAS,BERNABÉ L PIZARRO,GUADALUPE DEL C HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIOR
description	Hydrogels of 2-(dimethylamino)ethylacrylate (DMAEA) with N,N'-dimethyl acrylamide (NNDMAAm) were synthesized by solution free-radical polymerization at different feed mol ratios. These copolymers were completely water-insoluble. Polymers were characterized by elemental analysis, FT-IR spectroscopy, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The monomer reactivity ratios were determined by Kelen-Tüdos method. According to that, the monomer reactivity ratios for poly(DMAEA-co-NNDMAAm) were r1 = 0.288 (M1=DMAEA) and r2 = 1.460 (M2=NNDMAAm), (r1x r 2 = 0.419). Low critical solution temperatures (LCST) values of hydrogels are around 60°C, which was significantly higher than that poly(NIPAAm) and increased with increasing of hydrophilic DMAEA unit content in the copolymers. The hydrogels achieved a water-absorption value of 188 g of water/g of dry polymer (xerogel) in distilled water. Effects of time, temperature, pH, salt concentration, cross-linking concentration, and solvent polarity on the water absorption were studied. Experimental results indicated that the copolymer poly(DMAEA-co-NNDMAAm) with a feed mol ratio 2:1 presents the best swelling properties.
author	POOLEY,S.AMALIA RIVAS,BERNABÉ L PIZARRO,GUADALUPE DEL C
author_facet	POOLEY,S.AMALIA RIVAS,BERNABÉ L PIZARRO,GUADALUPE DEL C
author_sort	POOLEY,S.AMALIA
title	HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIOR
title_short	HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIOR
title_full	HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIOR
title_fullStr	HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIOR
title_full_unstemmed	HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIOR
title_sort	hydrogels based on (dimethylamino)ethylacrylate (dmaea) and n,n'-dimethylacrylamide (nndmaam): synthesis, characterization, and swelling behavior
publisher	Sociedad Chilena de Química
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000100021
work_keys_str_mv	AT pooleysamalia hydrogelsbasedondimethylaminoethylacrylatedmaeaandnndimethylacrylamidenndmaamsynthesischaracterizationandswellingbehavior AT rivasbernabel hydrogelsbasedondimethylaminoethylacrylatedmaeaandnndimethylacrylamidenndmaamsynthesischaracterizationandswellingbehavior AT pizarroguadalupedelc hydrogelsbasedondimethylaminoethylacrylatedmaeaandnndimethylacrylamidenndmaamsynthesischaracterizationandswellingbehavior
_version_	1718445482539220992

HYDROGELS BASED ON (DIMETHYLAMINO)ETHYLACRYLATE (DMAEA) AND N,N'-DIMETHYLACRYLAMIDE (NNDMAAM): SYNTHESIS, CHARACTERIZATION, AND SWELLING BEHAVIOR

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