2024-03-28T14:25:32Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00013384
2022-12-14T03:48:42Z
1309:1310
Preparation of surfactant-free vinyl polymers by conventional emulsion polymerization using hydrolysable emulsifiers
Itoh, Yoshihiro
Sahara, Fumiya
Ozaki, Kaori
Akasaka, Ryo
Teramoto, Akira
The original publication is available at www.springerlink.com
Emulsion polymerization
Latices
Cleavable surfactant
Hydrolysis
Betaine ester
Emulsion polymerizations of several vinyl monomers, styrene, methyl methacrylate, butyl methacrylate, butyl acrylate, and vinyl acetate, in water using alkali-hydrolysable cationic surfactants with a betaine ester group (1-alkoxycarbonylmethyl)trimethylammonium chlorides, as emulsifiers were carried out and properties of the resulting latices and the polymers recovered by hydrolysis and salting out were investigated. There were little influences of the surfactants and monomers used here on the polymerizations, forming stable and monodisperse latices with a mean diameter of ca. 70 nm and giving a high molecular weight of polymers at high yields. All polymers were precipitated and recovered by adding a small amount of sodium hydroxide into the latex solutions contained little amount of ionic species. Solvent-cast films of the polymers were found to have surfaces as hydrophobic as those for the corresponding pure polymers prepared by bulk polymerization.
Article
POLYMER BULLETIN. 67(8):1455-1462 (2011)
SPRINGER
2011-11
eng
journal article
AM
http://hdl.handle.net/10091/16181
https://soar-ir.repo.nii.ac.jp/records/13384
https://doi.org/10.1007/s00289-011-0462-7
10.1007/s00289-011-0462-7
0170-0839
AA00362798
POLYMER BULLETIN
67
8
1455
1462
https://soar-ir.repo.nii.ac.jp/record/13384/files/Preparation_surfactant-free_vinyl_polymers_conventional.pdf
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2015-09-28