Unknown

Dataset Information

0

Radical polymerization of capillary bridges between micron-sized particles in liquid bulk phase as a low temperature route to produce porous solid materials.


ABSTRACT: We present a generic and versatile low temperature route to produce macro-porous bodies with porosity and pore size distribution that are adjustable in a wide range. Capillary suspensions, where the minor fluid is a monomer, are used as pre-cursors. The monomer is preferentially located between the particles, creating capillary bridges, resulting in a strong, percolating network. Thermally induced polymerization of these bridges at temperatures below 100 °C for less than 5 hours and subsequent removal of the bulk fluid yields macroscopic, self-supporting solid bodies with high porosity. This process is demonstrated using methylmethacrylate and hydroxyethylmethacrlyate with glass particles as a model system. The produced PMMA had a molecular weight of about 500.000 g/mol and dispersity about three. Application specific porous bodies, including PMMA particles connected by PMMA bridges, micron-sized capsules containing phase change material with high inner surface, and porous graphite membranes with high electrical conductivity, are also shown.

SUBMITTER: Hauf K 

PROVIDER: S-EPMC5830084 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

altmetric image

Publications

Radical polymerization of capillary bridges between micron-sized particles in liquid bulk phase as a low temperature route to produce porous solid materials.

Hauf Katharina K   Riazi Kamran K   Willenbacher Norbert N   Koos Erin E  

Colloid and polymer science 20170718 10


We present a generic and versatile low temperature route to produce macro-porous bodies with porosity and pore size distribution that are adjustable in a wide range. Capillary suspensions, where the minor fluid is a monomer, are used as pre-cursors. The monomer is preferentially located between the particles, creating capillary bridges, resulting in a strong, percolating network. Thermally induced polymerization of these bridges at temperatures below 100 °C for less than 5 hours and subsequent r  ...[more]

Similar Datasets

| S-EPMC6288109 | biostudies-literature
| S-EPMC5452773 | biostudies-other
| S-EPMC3078152 | biostudies-other
| S-EPMC3581832 | biostudies-other
| S-EPMC4336564 | biostudies-literature
| PRJNA554707 | ENA
| S-EPMC7870900 | biostudies-literature
| S-EPMC7235068 | biostudies-literature
| S-EPMC7564500 | biostudies-literature
| S-EPMC4669065 | biostudies-literature