Free volume distributions in amorphous polymers

1995 ◽  
Vol 4 (3) ◽  
pp. 397-404 ◽  
Author(s):  
T. S. Chow
Keyword(s):  
Free Volume ◽  
Amorphous Polymers

Contribution of a diffusional mechanism to the relaxation of free volume in amorphous polymers

1986 ◽  
Vol 28 (7) ◽  
pp. 1690-1697 ◽  
Author(s):  
L.M Bogdanova ◽  
V.I Irzhak ◽  
B.A Rozenberg
Keyword(s):  
Free Volume ◽  
Amorphous Polymers ◽  
Diffusional Mechanism

Studies on the free volume and the volume expansion behavior of amorphous polymers

2000 ◽  
Vol 58 (5-6) ◽  
pp. 525-530 ◽  
Author(s):  
K. Hagiwara ◽  
T. Ougizawa ◽  
T. Inoue ◽  
K. Hirata ◽  
Y. Kobayashi
Keyword(s):  
Free Volume ◽  
Volume Expansion ◽  
Amorphous Polymers ◽  
Expansion Behavior

A general free volume based theory for the diffusion of large molecules in amorphous polymers above Tg. 4. Polymer-penetrant interactions

1991 ◽  
Vol 24 (7) ◽  
pp. 1526-1534 ◽  
Author(s):  
Christopher S. Coughlin ◽  
Kenneth A. Mauritz ◽  
Robson F. Storey
Keyword(s):  
Free Volume ◽  
Amorphous Polymers ◽  
Large Molecules

scholarly journals A Coordinative Solubilizer Method to Fabricate Soft Porous Materials from Insoluble Metal-Organic Polyhedra

2018 ◽  
Author(s):  
Arnau Carné-Sánchez ◽  
Gavin A. Craig ◽  
Patrick Larpent ◽  
Vincent Guillerm ◽  
Kenji Urayama ◽  
...  
Keyword(s):  
Porous Materials ◽  
Functional Groups ◽  
Free Volume ◽  
Amorphous Polymers ◽  
Gas Uptake ◽  
Surface Areas ◽  
Molecular Cages ◽  
Metal Organic ◽  
Coordination Bonds ◽  
Supramolecular Polymerization

<p>Porous molecular cages have a characteristic processability arising from their solubility, which allows their incorporation into porous materials. Attaining solubility often requires covalently bound functional groups that are unnecessary for porosity, and which ultimately occupy free volume in the materials and decrease their surface areas. Here, we describe a method that takes advantage of the coordination bonds in metal-organic polyhedra (MOPs) to render insoluble MOPs soluble by reversibly attaching an alkyl-functionalized ligand. We then use the newly soluble MOPs as monomers for supramolecular polymerization reactions, obtaining permanently porous, amorphous polymers with the shape of colloids and gels, which display increased gas uptake in comparison with materials made with covalently functionalized MOPs.</p>

scholarly journals A Coordinative Solubilizer Method to Fabricate Soft Porous Materials from Insoluble Metal-Organic Polyhedra

2018 ◽  
Author(s):  
Arnau Carné-Sánchez ◽  
Gavin A. Craig ◽  
Patrick Larpent ◽  
Vincent Guillerm ◽  
Kenji Urayama ◽  
...  
Keyword(s):  
Porous Materials ◽  
Functional Groups ◽  
Free Volume ◽  
Amorphous Polymers ◽  
Gas Uptake ◽  
Surface Areas ◽  
Molecular Cages ◽  
Metal Organic ◽  
Coordination Bonds ◽  
Supramolecular Polymerization

<p>Porous molecular cages have a characteristic processability arising from their solubility, which allows their incorporation into porous materials. Attaining solubility often requires covalently bound functional groups that are unnecessary for porosity, and which ultimately occupy free volume in the materials and decrease their surface areas. Here, we describe a method that takes advantage of the coordination bonds in metal-organic polyhedra (MOPs) to render insoluble MOPs soluble by reversibly attaching an alkyl-functionalized ligand. We then use the newly soluble MOPs as monomers for supramolecular polymerization reactions, obtaining permanently porous, amorphous polymers with the shape of colloids and gels, which display increased gas uptake in comparison with materials made with covalently functionalized MOPs.</p>

Sign in / Sign up

Export Citation Format

Share Document