Temperature Dependence of Adsorption of Polymer Mixtures from Solutions

Lipatov, Yu.S.; Todosijchuk, Tamara; Chornaya, Valentine

doi:10.1006/jcis.2000.7173

Cited by 8 publications

(2 citation statements)

References 16 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%

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.

View full text Add to dashboard Cite

show abstract

“…This value characterizes the change in enthalpy of adsorbate (polymer) by its transition from solution onto the adsorbent surface and shows that the polymer in the adsorption layer is in the less favorable energetic state both by adsorption from binary and ternary solutions. In Table 2 are listed values of differential enthalpy of adsorption of polymers from binary and ternary solutions at different amounts of adsorbed polymer obtained by us earlier (26). The effect depends on the degree of the surface covering-the higher the adsorption, the higher the H .…”

Section: Adsorption Measurementsmentioning

confidence: 97%