1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Plasticization and antiplasticization of polymer melts diluted by low molar mass species
Rent:
Rent this article for
USD
10.1063/1.3304738
/content/aip/journal/jcp/132/8/10.1063/1.3304738
http://aip.metastore.ingenta.com/content/aip/journal/jcp/132/8/10.1063/1.3304738
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Representation of the styrene monomer as a collection of united atom groups used in the LCT.

Image of FIG. 2.
FIG. 2.

Shifts in for a SF polymer melt diluted by 10% mass of oligomeric additives as a function of their polymerization index . Each curve corresponds to a specific cohesive energy of the diluents.

Image of FIG. 3.
FIG. 3.

Influence of size and cohesive energy of the additives on the fragility of a SF polymer melt mixed with 10% mass of the oligomeric diluent.

Image of FIG. 4.
FIG. 4.

Ratios of the isothermal compressibility of the mixture (SF host polymer mass of the additive) to the pure SF melt evaluated at the of the mixture as a function of size of the oligomeric additives. Each curve corresponds to the specified cohesive energy of the diluents.

Image of FIG. 5.
FIG. 5.

Ratios of specific density of the mixture (SF host polymer mass of the additive) and the pure SF melt at the of the mixture as a function of the size of the oligomeric additives. Each curve corresponds to the specific cohesive energy of the diluents.

Image of FIG. 6.
FIG. 6.

Shifts in the ideal glass transition temperatures for a SF polymer melt diluted by oligomeric additives (10% mass) with different sizes and cohesive energies as a function of the bending energy of the diluent backbone. The stiffness of the side groups in the additives is (see text).

Image of FIG. 7.
FIG. 7.

General scaling relation for the shift in the glass transition temperature for mixtures of a SF polymer melt diluted by oligomeric additives when both the size and interaction energy of the diluent vary. The relation has the form with , , and .

Image of FIG. 8.
FIG. 8.

Correlation between the change in fragility of a SF polymer melt diluted by 10% mass of an oligomeric species and the change in free volume fraction at the respective .

Image of FIG. 9.
FIG. 9.

of PS diluted by either a fully flexible pentamer or a dimer with the structure of PS but with low and high van der Waals energies as a function of the composition of the mixture.

Image of FIG. 10.
FIG. 10.

Composition dependence of the fragility of a PS melt diluted by a fully flexible and oligomeric additive with low and high cohesive energies .

Image of FIG. 11.
FIG. 11.

Composition dependence of the ratios of isothermal compressibility of the mixtures (PS diluted by fully flexible - and -mers with low and high cohesive energies ) and the undiluted polymer evaluated at the of the mixtures. The inset presents the identical relations for the specific density ratios at the of the mixtures.

Image of FIG. 12.
FIG. 12.

Dependence of the inverse exponential factor in PS-A mixtures (see text) at several fixed temperatures as a function of the mass fraction of PS. The inset depicts the temperature dependence of the zero mobility concentration of the host polymer in PS-A mixtures.

Image of FIG. 13.
FIG. 13.

Compositional variation in the glass transition temperature for PS-A mixtures, where is the mass fraction of the polymer.

Image of FIG. 14.
FIG. 14.

Pressure dependence of zero mobility concentrations of the polymer in PS-A mixtures at several fixed temperatures. Solid lines represent the nonlinear fits to Eq. (16) in the range from 0 to 500 MPa and from 250 to 310 K with parameters , , , , and .

Image of FIG. 15.
FIG. 15.

Chain length dependence of the zero mobility concentrations of the polymer in PS-A mixtures at several fixed temperatures. Solid lines represent the linear regressions with parameters and , and , and and .

Loading

Article metrics loading...

/content/aip/journal/jcp/132/8/10.1063/1.3304738
2010-02-22
2014-04-24
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Plasticization and antiplasticization of polymer melts diluted by low molar mass species
http://aip.metastore.ingenta.com/content/aip/journal/jcp/132/8/10.1063/1.3304738
10.1063/1.3304738
SEARCH_EXPAND_ITEM