Polydispersity Effect on the Adsorption of Polymer Mixtures

Lipatov, Yu.S.; Feinerman, A. E.; Todosijchuk, Tamara; Chornaya, Valentine; Dudarenko, Galina

doi:10.1006/jcis.2000.6914

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…It is well known that strong interaction between nanoparticles and polymer chains would lead to the preferential adsorption of PVME on the surface of nanoparticles and the formation of interfacial layer as proposed by Lipatov . To illustrate the adsorption of polymer chains on the surface of nanoparticles, the specific reversing heat capacity ( C p ) of the nanocomposites during glass transition of PVME and PS was detected by MDSC.…”

Section: Resultsmentioning

confidence: 99%

Evolution of concentration fluctuation during phase separation of polystyrene/poly(vinyl methyl ether) blend in the presence of nanosilica

Chen

Zuo

Yang

et al. 2017

J. Polym. Sci. Part B: Polym. Phys.

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The influence of nanosilica on the concentration fluctuation of polystyrene/poly (vinyl methyl ether) (PS/PVME) mixtures was investigated during phase separation. The amplitude of concentration fluctuation was quantified by dielectric spectrums based on the idea of Lodge-Mcleish model and the linearized Cahn-Hilliard theory could describe the amplitude evolution of concentration fluctuation at the early stage of phase separation. Hydrophilic nanosilica A200 dispersed in PVME-rich phase behaved an obvious inhibition effect on the concentration fluctuation of blend matrix, while hydrophobic nanosilica R974 dispersed in PS-rich phase had little effect on the concentration fluctuation. The kinetics and amplitude evolution of concentration fluctuation during phase separation for PS/PVME/A200 nanocomposites were remarkably restrained due to the surface adsorption of PVME on A200. As the segmental dynamics of PVME and PS in homogeneous matrix was hardly influenced by A200 and R974, the enhanced miscibility and the significantly constrained flow relaxation of PVME chains might contribute to the retarded concentration fluctuation of PS/PVME/A200 nanocomposites. While the weak interaction between R974 and components of blend matrix and little effect of R974 on the molecular dynamics of PS chains may result in the weak retardation of concentration fluctuation for blend matrix.

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Section: Resultsmentioning

confidence: 99%