Research output: Contribution to journal › Article › peer-review
Structure and molecular properties of complexes of sulfonated polystyrene with surfactant molecules in m-xylene. / Mel'nikov, A. B.; Antonov, E. A.; Ryumtsev, E. I.; Lysenko, E. A.; Lezov, A. V.
In: Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya, Vol. 45, No. 9, 2003, p. 1544-1551.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Structure and molecular properties of complexes of sulfonated polystyrene with surfactant molecules in m-xylene
AU - Mel'nikov, A. B.
AU - Antonov, E. A.
AU - Ryumtsev, E. I.
AU - Lysenko, E. A.
AU - Lezov, A. V.
PY - 2003
Y1 - 2003
N2 - The methods of viscometry, isothermal diffusion, and high-speed sedimentation are used to study the structure, properties, and molecular characteristics of complexes formed by sulfonated polystyrene molecules containing 1.35 molar % ionogenic SO3Na groups and molecules of a surfactant, bis(2-ethylhexyl) sodium sulfosuccinate, in m-xylene. It was found that, at molar ratio of ionomer to surfactant units equal to or smaller than 2.5, complexes with a limiting composition were formed in solution. In the process, micelles containing on average 15 surfactant molecules were formed on ionogenic groups of the ionomer; which is virtually equal to their aggregation number in m-xylene. The dimensions of such a complex are 1.18 times greater than those of a polystyrene molecule with the same degree of polymerization and 1.52 times greater than the dimensions of single molecules of the initial ionomer in m-xylene. The complexation was found to significantly weaken the association of the ionomer molecules. The exponent characterizing the dependence of the molecular mass of the associate on the solution concentration is almost four times smaller than that for the ionomer solution.
AB - The methods of viscometry, isothermal diffusion, and high-speed sedimentation are used to study the structure, properties, and molecular characteristics of complexes formed by sulfonated polystyrene molecules containing 1.35 molar % ionogenic SO3Na groups and molecules of a surfactant, bis(2-ethylhexyl) sodium sulfosuccinate, in m-xylene. It was found that, at molar ratio of ionomer to surfactant units equal to or smaller than 2.5, complexes with a limiting composition were formed in solution. In the process, micelles containing on average 15 surfactant molecules were formed on ionogenic groups of the ionomer; which is virtually equal to their aggregation number in m-xylene. The dimensions of such a complex are 1.18 times greater than those of a polystyrene molecule with the same degree of polymerization and 1.52 times greater than the dimensions of single molecules of the initial ionomer in m-xylene. The complexation was found to significantly weaken the association of the ionomer molecules. The exponent characterizing the dependence of the molecular mass of the associate on the solution concentration is almost four times smaller than that for the ionomer solution.
UR - http://www.scopus.com/inward/record.url?scp=0142022842&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0142022842
VL - 45
SP - 1544
EP - 1551
JO - ВЫСОКОМОЛЕКУЛЯРНЫЕ СОЕДИНЕНИЯ. СЕРИЯ А
JF - ВЫСОКОМОЛЕКУЛЯРНЫЕ СОЕДИНЕНИЯ. СЕРИЯ А
SN - 2308-1120
IS - 9
ER -
ID: 94252528