Abstract
It has been shown via the example of three types of polyacrylamide hydrogels synthesized through the usual radical copolymerization of acrylamide and N,N′-methylene-bisacrylamide, the copolymerization of these monomers in the presence of a chain-transfer agent, and the pseudoliving copolymerization in the presence of a reversible-chain-transfer agent that one of the factors determining the microstructure of crosslinked polymer systems is the molecular-mass distribution of the copolymer forming at the initial step of the process. The closer the Mw/Mn ratio of the copolymer is to unity, the lower the contribution of larger pores in the total number of hydrogel pores.
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