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Novel Method of Producing Polymer Gels in Aqueous Solution Using UV Irradiation
Author(s) -
Ikkai Fumiyoshi,
Adachi Eiki
Publication year - 2004
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200400196
Subject(s) - ammonium persulfate , persulfate , aqueous solution , irradiation , polymer , polymerization , monomer , materials science , dynamic light scattering , light scattering , polymer chemistry , light intensity , scattering , chemical engineering , chemistry , optics , nanotechnology , composite material , organic chemistry , catalysis , physics , engineering , nanoparticle , nuclear physics
Summary: We developed a novel method of producing polymer gels in aqueous solution using UV irradiation. Persulfates were effective photosensitive initiators of polymerization and/or gelation of acryloyl‐type monomers/polymers. The gelation was confirmed by an abrupt increase in light scattering intensity, 〈 I ( q )〉 T , at the gelation point. The gelation method entails significant advantages: it does not need any cross‐linkers, temperature control (heating), and additives except the persulfate.The UV irradiation time dependence of light scattering intensity, 〈 I ( q )〉 T , for pre‐gel solutions containing N ‐isopropylacrylamide (NIPAm) and/or ammonium persulfate (APS).