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pH-sensitive superabsorbent polymers: a potential candidate material for self-healing concrete

Arn Mignon UGent, Geert-Jan Graulus UGent, Didier Snoeck UGent, José Martins UGent, Nele De Belie UGent, Peter Dubruel UGent and Sandra Van Vlierberghe UGent (2015) JOURNAL OF MATERIALS SCIENCE. 50(2). p.970-979
abstract
Superabsorbent polymers (SAPs) have already found their way in many applications. These ‘smart’ polymers undergo major characteristic changes by small environmental variations. In the present work, copolymer networks composed of acrylic acid, acrylamide and N,N′-methylenebisacrylamide have been synthesized using free radical precipitation polymerization. The polymers obtained have been characterized for their chemical structure, moisture (de)sorption and swelling behaviour using, respectively, attenuated total reflectance-infrared spectroscopy, high-resolution magic-angle spinning NMR spectroscopy, dynamic vapour sorption and swelling studies. The results indicated a remarkable moisture uptake capacity at high relative humidities of more than 90 % the original polymer weight with a negligible hysteresis. The latter implies that the SAPs developed are very promising water reservoir candidates, which become useful in concrete-related applications. Furthermore, the swelling data revealed that polymers with a low cross-linking density result in materials with superabsorbent properties. In addition, these SAPs show a pH-dependent swelling behaviour up to 450 times their original weight at pH 12.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
MECHANICAL-PROPERTIES, DRUG-DELIVERY-SYSTEMS, ALKALINE-HYDROLYSIS, IN-VITRO, HYDROGELS, POLYACRYLAMIDE, ACID
journal title
JOURNAL OF MATERIALS SCIENCE
J. Mater. Sci.
volume
50
issue
2
pages
970 - 979
Web of Science type
Article
Web of Science id
000345407900047
JCR category
MATERIALS SCIENCE, MULTIDISCIPLINARY
JCR impact factor
2.302 (2015)
JCR rank
82/271 (2015)
JCR quartile
2 (2015)
ISSN
0022-2461
DOI
10.1007/s10853-014-8657-6
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
5731043
handle
http://hdl.handle.net/1854/LU-5731043
date created
2014-10-20 11:58:50
date last changed
2016-12-19 15:39:36
@article{5731043,
  abstract     = {Superabsorbent polymers (SAPs) have already found their way in many applications. These {\textquoteleft}smart{\textquoteright} polymers undergo major characteristic changes by small environmental variations. In the present work, copolymer networks composed of acrylic acid, acrylamide and N,N{\textquotesingle}-methylenebisacrylamide have been synthesized using free radical precipitation polymerization. The polymers obtained have been characterized for their chemical structure, moisture (de)sorption and swelling behaviour using, respectively, attenuated total reflectance-infrared spectroscopy, high-resolution magic-angle spinning NMR spectroscopy, dynamic vapour sorption and swelling studies. The results indicated a remarkable moisture uptake capacity at high relative humidities of more than 90 \% the original polymer weight with a negligible hysteresis. The latter implies that the SAPs developed are very promising water reservoir candidates, which become useful in concrete-related applications. Furthermore, the swelling data revealed that polymers with a low cross-linking density result in materials with superabsorbent properties. In addition, these SAPs show a pH-dependent swelling behaviour up to 450 times their original weight at pH 12.},
  author       = {Mignon, Arn and Graulus, Geert-Jan and Snoeck, Didier and Martins, Jos{\'e} and De Belie, Nele and Dubruel, Peter and Van Vlierberghe, Sandra},
  issn         = {0022-2461},
  journal      = {JOURNAL OF MATERIALS SCIENCE},
  keyword      = {MECHANICAL-PROPERTIES,DRUG-DELIVERY-SYSTEMS,ALKALINE-HYDROLYSIS,IN-VITRO,HYDROGELS,POLYACRYLAMIDE,ACID},
  language     = {eng},
  number       = {2},
  pages        = {970--979},
  title        = {pH-sensitive superabsorbent polymers: a potential candidate material for self-healing concrete},
  url          = {http://dx.doi.org/10.1007/s10853-014-8657-6},
  volume       = {50},
  year         = {2015},
}

Chicago
Mignon, Arn, Geert-Jan Graulus, Didier Snoeck, José Martins, Nele De Belie, Peter Dubruel, and Sandra Van Vlierberghe. 2015. “pH-sensitive Superabsorbent Polymers: a Potential Candidate Material for Self-healing Concrete.” Journal of Materials Science 50 (2): 970–979.
APA
Mignon, A., Graulus, G.-J., Snoeck, D., Martins, J., De Belie, N., Dubruel, P., & Van Vlierberghe, S. (2015). pH-sensitive superabsorbent polymers: a potential candidate material for self-healing concrete. JOURNAL OF MATERIALS SCIENCE, 50(2), 970–979.
Vancouver
1.
Mignon A, Graulus G-J, Snoeck D, Martins J, De Belie N, Dubruel P, et al. pH-sensitive superabsorbent polymers: a potential candidate material for self-healing concrete. JOURNAL OF MATERIALS SCIENCE. 2015;50(2):970–9.
MLA
Mignon, Arn, Geert-Jan Graulus, Didier Snoeck, et al. “pH-sensitive Superabsorbent Polymers: a Potential Candidate Material for Self-healing Concrete.” JOURNAL OF MATERIALS SCIENCE 50.2 (2015): 970–979. Print.