SYNTHESIS OF RESORCINOL-FORMALDEHYDE AEROGELS BY THE FREEZE-DRYING METHOD

Authors
MATHIEU B MICHAUX B VANCANTFORT O NOVILLE F PIRARD R PIRARD JP
Citation
B. Mathieu et al., SYNTHESIS OF RESORCINOL-FORMALDEHYDE AEROGELS BY THE FREEZE-DRYING METHOD, Annales de chimie, 22(1), 1997, pp. 19-29
Citations number
12
Categorie Soggetti
Chemistry,"Material Science
Journal title
Annales de chimie → ACNP
ISSN journal
01519107
Volume
22
Issue
1
Year of publication
1997
Pages
19 - 29
Database
ISI
SICI code
0151-9107(1997)22:1<19:SORABT>2.0.ZU;2-M
Abstract
This paper presents the main results of a study about a new method for drying organic resorcinol-formaldehyde gels: freeze-drying. The obtai ned material has a good cohesion and presents an important porous volu me (up to 9.5 cm(3)/g) and a large specific surface area (up to 300 m( 2)/g). It is shown that the drying operating conditions and particular ly the freezing rate and the surface/volume ratio of the gel samples m odify the textural characteristics of the aerogel.