Effect of the polymer glass transition on the chromatographic retention volumes

2005 ◽  
Vol 97 (3) ◽  
pp. 793-796
Author(s):  
J. S. Vrentas ◽  
C. M. Vrentas
Keyword(s):  
Glass Transition ◽  
Chromatographic Retention ◽  
Polymer Glass ◽  
Retention Volumes

Correlation between glass transition temperature and molecular mass in non-polymeric and polymer glass formers

Polymer ◽  
2013 ◽  
Vol 54 (26) ◽  
pp. 6987-6991 ◽  
Author(s):  
V.N. Novikov ◽  
E.A. Rössler
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Molecular Mass ◽  
Polymer Glass

scholarly journals Polymer glass transition occurs at the marginal rigidity point with connectivity z* = 4

Soft Matter ◽  
2016 ◽  
Vol 12 (35) ◽  
pp. 7330-7337 ◽  
Author(s):  
Anna Lappala ◽  
Alessio Zaccone ◽  
Eugene M. Terentjev
Keyword(s):  
Glass Transition ◽  
Polymer Glass

Nanostructured Fluids For Polymeric Coatings Removal: Surfactants Affect the Polymer Glass Transition Temperature

2021 ◽  
Author(s):  
Michele Baglioni ◽  
Felipe Hidetomo Sekine ◽  
Taku Ogura ◽  
Sow-Hsin Chen ◽  
Piero Baglioni
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Polymeric Coatings ◽  
Polymer Glass

Molecular interpretation of correlation between polymer glass transition Tg and an e.s.r. parameter T50G

Polymer ◽  
1978 ◽  
Vol 19 (5) ◽  
pp. 598-600 ◽  
Author(s):  
D Braun ◽  
P Törmälä ◽  
G Weber
Keyword(s):  
Glass Transition ◽  
Polymer Glass ◽  
Molecular Interpretation

Effect of Silica Flour in Dow Corning High Vacuum Grease on Gas Chromatographic Retention Volumes

1961 ◽  
Vol 33 (11) ◽  
pp. 1625-1626 ◽  
Author(s):  
E. D. Smith
Keyword(s):  
High Vacuum ◽  
Chromatographic Retention ◽  
Retention Volumes

scholarly journals Light Scattering Loss and Glass Transition Temperature of Optical Polymer Glass.

1996 ◽  
Vol 53 (10) ◽  
pp. 682-688 ◽  
Author(s):  
Norihisa TANIO ◽  
Yasuhiro KOIKE
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Light Scattering ◽  
Scattering Loss ◽  
Polymer Glass ◽  
Optical Polymer

Surface and interfacial effect on polymer glass transition temperature studied by positron annihilation

2003 ◽  
Vol 68 (3-4) ◽  
pp. 535-539 ◽  
Author(s):  
J. Zhang ◽  
R. Zhang ◽  
H. Chen ◽  
Y. Li ◽  
Y.C. Wu ◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Positron Annihilation ◽  
Interfacial Effect ◽  
Polymer Glass

Influence of an impenetrable interface on a polymer glass-transition temperature

1995 ◽  
Vol 52 (4) ◽  
pp. R3329-R3332 ◽  
Author(s):  
W. E. Wallace ◽  
J. H. van Zanten ◽  
W. L. Wu
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Polymer Glass

ADSORPTIVE AND GAS CHROMATOGRAPHIC PROPERTIES OF VARIOUS CATIONIC FORMS OF ZEOLITE X

1964 ◽  
Vol 42 (10) ◽  
pp. 2340-2350 ◽  
Author(s):  
H. W. Habgood
Keyword(s):  
Ionic Radius ◽  
Adsorption Process ◽  
Divalent Cations ◽  
Chromatographic Retention ◽  
Monovalent Cations ◽  
Zeolite X ◽  
Heats Of Adsorption ◽  
Quadrupole Interactions ◽  
Silver Compound ◽  
Retention Volumes

Gas chromatographic retention volumes for O2, N2, CH4, C2H6, C3H8, C4H10, C2H4, and C3H6 have been measured over a range of temperatures between 25 and 400 °C, on columns of the following ion-exchanged forms of zeolite X: Li+, Na+, K+, Mg++, Ca++, Ba++, and Ag+. In addition, for AgX zeolite, full isotherms have been determined for O2, N2, C2H6, and C2H4; and for NaX zeolite, isotherms for C2H6 and C2H4. The gas chromatographic retention volumes agree well with the isotherms in the case of NaX but are significantly low for AgX, presumably as the result of at least a portion of the adsorption process being slow. The heats of adsorption on NaX agree well with literature values for O2, N2, CH4, and C2H6 but are low for C3H8 and C4H10; further indication of slow processes and hence of a limitation of the g.c. technique. The observations can be correlated qualitatively in terms of the interplay of the following effects: (a) cationic field increases with decreasing ionic radius; (b) shielding of smaller cations is greater—at least in the six-membered oxygen-ring sites; (c) divalent cations, while having greater fields, are only half the number of monovalent cations and tend to be found in less exposed sites; and (d) the polarizing power of silver ion, which also occupies all types of exposed sites, is very strong. The most intense interactions were found with AgX; with ethylene a much stronger complex is formed than has been reported for any other silver compound. The significance of molecular quadrupole interactions on these heteroionic surfaces is shown by the much weaker cationic effects observed with O2 (which has negligible quadrupole moment) than with nitrogen.

Sign in / Sign up

Export Citation Format

Share Document