High performance of interpenetrating polymer network hydrogels induced by frontal polymerization

We report the rapid synthesis of hydrogels with interpenetrating polymer networks (IPNs) by frontal polymerization (FP). Appropriate amounts of diacetone acrylamide (DAAM), N -methylolacrylamide (NMA), thermoplastic polyurethane (TPU), N , N ′-methylenebisacrylamide (MBAA), and ammonium persulfate (...

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Bibliographic Details
Published in:Colloid and polymer science 2013-08, Vol.291 (8), p.1871-1879
Main Authors: Liu, Nian, Shao, Huan, Wang, Cai-Feng, Chen, Qiao-Ling, Chen, Su
Format: Article
Language:English
Subjects:
Applied sciences
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Exact sciences and technology
Filled plastics
Food Science
Hydrogels
Interpenetrating networks
Nanotechnology and Microengineering
Organic polymers
Original Contribution
Physical Chemistry
Physicochemistry of polymers
Polymer Sciences
Polymerization
Polymers
Properties and characterization
Soft and Granular Matter
Solution and gel properties
Strength
Synthesis
Urethane thermoplastic elastomers
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Summary:We report the rapid synthesis of hydrogels with interpenetrating polymer networks (IPNs) by frontal polymerization (FP). Appropriate amounts of diacetone acrylamide (DAAM), N -methylolacrylamide (NMA), thermoplastic polyurethane (TPU), N , N ′-methylenebisacrylamide (MBAA), and ammonium persulfate (APS)/ N , N , N ′, N ′-tetramethylethylenediamine (TMEDA) were mixed together at ambient temperature. FP was initiated by transitorily heating the upper side of the reactants, and poly(DAAM- co -NMA)/TPU IPN hydrogels were obtained within minutes. The preparation parameters were thoroughly investigated. Moreover, we investigated the morphology, swelling capacity, chemical structure and the mechanical properties of poly(DAAM- co -NMA)/TPU IPN hydrogels, along with those of poly(DAAM- co -NMA) hydrogels without IPN structure for comparison. Interestingly, the mechanical strength of poly(DAAM- co -NMA)/TPU IPN hydrogels is notably improved in comparison with that of poly(DAAM- co -NMA) hydrogels. The results indicate that the IPN structure endows hydrogels with high mechanical strength, and FP can be applied as an alternative means for synthesis of IPN hydrogels with additional advantages of speed and efficiency.
ISSN:0303-402X
1435-1536
DOI:10.1007/s00396-013-2924-y