Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 274, Issue 2, Pages 555-562Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2003.12.029
Keywords
phenol-formaldehyde spheres; pyrolysis; FT-IR; TGA
Categories
Ask authors/readers for more resources
The effect of CO2 atmosphere on the chemical structure changes of resol-type phenol-formaldehyde spheres during pyrolysis was investigated, in comparison with that of N-2 atmosphere, using FT-IR, TGA, and elemental analysis techniques. It was found that, in contrast to the expectation that CO2 may act as an oxidizing agent at high temperature, it behaves very similar to N-2 during pyrolysis of PF spheres up to 700 degreesC, but results in a somewhat different extent of some specific reactions. That is, although the reactions occurring up to 700 degreesC were dominated by crosslinking and/or polyaromatization under both CO2 and N-2 atmospheres, fewer alkyl-phenolic ether bonds were formed under CO2 than under N-2. As a consequence, the samples carbonized under CO2 at 700 degreesC were found to have more pendant groups on the edge carbon atoms of carbon in the carbonized samples than those prepared under N2 atmosphere. (C) 2004 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available