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Gelation Dynamics and Mechanism(s) in Stereoregular Poly(Methyl Methacrylate)s
Author(s) -
Saiani Alberto
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200550404
Subject(s) - tacticity , helix (gastropod) , materials science , neutron scattering , small angle neutron scattering , bromobenzene , methyl methacrylate , chain (unit) , polymer chemistry , poly(methyl methacrylate) , molecular dynamics , crystallography , chemical engineering , scattering , chemistry , polymer , copolymer , computational chemistry , composite material , organic chemistry , optics , physics , catalysis , polymerization , snail , ecology , engineering , biology , astronomy
Chain conformation and gel structure of syndiotactic PMMA thermoreversible gels have been investigated using small angle neutron scattering (SANS). A double helix model for the chain conformation is proposed alongside a gel network model where the fibrils are formed by the proposed double helix and the junctions by the aggregation of 3 double helices. Preliminary results, also obtained by SANS, for stereocomplex gels prepared in bromobenzene are presented.