Elastic Properties of a Swollen PAAm-NIPA Copolymer with Various NIPA Contents

Copolymer based on cross-linked polyacrylamide (PAAm) having N-isopropylacrylamide (NIPA) was prepared and their elastic properties were studied as a function of NIPA contents. NIPA content dependency of the shear modulus, S of the PAAm-NIPA copolymers due to volume phase transition was measured usi...

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Bibliographic Details
Published in:Polymer-plastics technology and engineering 2014-06, Vol.53 (8), p.834-839
Main Authors: Evingur, Gulsen Akin, Pekcan, Onder
Format: Article
Language:English
Subjects:
Acrylamide
Applied sciences
Copolymers
Crosslinking
Elastic constants
Elastic properties
Elasticity
Exact sciences and technology
Isopropylacrylamide
Modulus of elasticity
NIPA
Organic polymers
Phase transformations
Phase transitions
Physicochemistry of polymers
Polyacrylamide
Polyacrylamides
Properties and characterization
Shear modulus
Solution and gel properties
Swelling
Temperature dependence
Tensile tests
Toughness
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Summary:Copolymer based on cross-linked polyacrylamide (PAAm) having N-isopropylacrylamide (NIPA) was prepared and their elastic properties were studied as a function of NIPA contents. NIPA content dependency of the shear modulus, S of the PAAm-NIPA copolymers due to volume phase transition was measured using tensile testing technique at 30°C. It was observed that its shear modulus and toughness were found to be strongly dependent on NIPA content. It is understood that the shear modulus was found to increase with NIPA contents, keeping constant temperature at 30°C. Elastic properties of the PAAm-NIPA copolymers show compositional dependence.
ISSN:0360-2559
1525-6111
DOI:10.1080/03602559.2014.886049