A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Abstract The theory of polymer swelling has been formulated by Flory and Rehner based on three main assumptions: (1) the change in the free energy of a swollen system is the sum of the contributions due to mixing of polymer and solvent and elastic deformation of network strands; (2) the mixing term can be described by the mean-field Flory—Huggins theory; (3) the elastic deformation of the network is described by the affine-deformation model. Using these three assumptions, one can obtain the relationship between network structure and equilibrium saturation swelling. The method is commonly used to determine network parameters such as crosslink density. In this chapter, the basic assumptions will be critically reviewed in view of recent work in rubber-like elasticity (Flory, P. J. and Erman, B., Macromolecules, 1982, 15,800), scaling theories and experimental results on network expansion during swelling, non-saturation swelling and swelling of networks by homopolymers.
Abstract The theory of polymer swelling has been formulated by Flory and Rehner based on three main assumptions: (1) the change in the free energy of a swollen system is the sum of the contributions due to mixing of polymer and solvent and elastic deformation of network strands; (2) the mixing term can be described by the mean-field Flory—Huggins theory; (3) the elastic deformation of the network is described by the affine-deformation model. Using these three assumptions, one can obtain the relationship between network structure and equilibrium saturation swelling. The method is commonly used to determine network parameters such as crosslink density. In this chapter, the basic assumptions will be critically reviewed in view of recent work in rubber-like elasticity (Flory, P. J. and Erman, B., Macromolecules, 1982, 15,800), scaling theories and experimental results on network expansion during swelling, non-saturation swelling and swelling of networks by homopolymers.
Swelling of Polymer Networks
Gottlieb, Moshe (author)
1988-01-01
12 pages
Article/Chapter (Book)
Electronic Resource
English
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