A correlation of the limiting viscosity number, molecular mass and composition of statistical linear styrene–methyl methacrylate copolymers (CROSBI ID 116193)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Matusinović, Zvonimir ; Rogošić, Marko ; Mencer, Helena Jasna
engleski
A correlation of the limiting viscosity number, molecular mass and composition of statistical linear styrene–methyl methacrylate copolymers
Statistical copolymers of styrene and methyl methacrylate of different compositions were synthesized by the radical solution copolymerization in a batch isothermal reactor. Copolymers were characterized by the size exclusion chromatography (SEC), elemental analysis and dilute solution viscometry. Experimental limiting viscosity numbers were described by the Mark-Houwink-Kuhn-Sakurada correlation as the function of the molar mass and by the Mendelson correlation as the function of both the molar mass and copolymer composition. A new correlation of the intrinsic viscosity number, molar mass and composition was developed, based on semiempirical considerations. The correlation takes into consideration all the effects which affect the dimensions of random linear copolymer coils in solvents. The new equation was found to be superior to the Mendelson's one in correlating the experimentally obtained intrinsic viscosities.
statistical copolymers of styrene and methyl methacrylate; intrinsic viscosity; limiting viscosity number; molecular mass; copolymer composition; dilute solution viscometry
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Podaci o izdanju
41 (12)
2005.
2934-2944
objavljeno
0014-3057
1873-1945
10.1016/j.eurpolymj.2005.05.012