Paper Search Console

Home Search Page Alphabetical List About Contact

Journal Title

Title of Journal: Cellulose

Search In Journal Title:

Abbravation: Cellulose

Search In Journal Abbravation:

Publisher

Springer Netherlands

Search In Publisher:

DOI

10.1002/elps.200600415

Search In DOI:

ISSN

1572-882X

Search In ISSN:
Search In Title Of Papers:

Interactions with water of mixed acetic-fatty cellulose esters

Authors: J. Peydecastaing, C. Vaca-Garcia, E. Borredon,

Publish Date: 2011/04/11
Volume: 18, Issue:4, Pages: 1023-1031
PDF Link

Abstract

Cellulose powder was acylated with mixtures containing acetic, fatty and acetic-fatty anhydrides to form acetic-fatty cellulose esters. The total degree of substitution (DS) of the mixed cellulose esters (MCE) ranged from 2 × 10−2 to 2.92. MCE were characterized by their interactions with water. Static contact angles with water were measured on a regular smooth surface. The values found were dependent on the fatty acyl content and independent of the acetyl content. In the case of acetic-oleic cellulose esters, the minimum DS of the oleoyl moiety required to obtain permanent water repellency was 3 × 10−4. The microporosity of the samples may account for this exceptional hydrophobic character. Nevertheless, water vapor adsorption measurements on powder samples revealed only a limited increase in hydrophobicity of the MCE compared to cellulose acetate with the same acetyl content. It was thus demonstrated that water repellency and vapor water adsorption are not correlated.


Keywords:

References


.
Search In Abstract Of Papers:
Other Papers In This Journal:


Search Result:



Help video to use 'Paper Search Console'