scholarly journals THERMAL PROPERTIES OF CARBOXYMETHYL CELLULOSE ACETATE BUTYRATE

2019 ◽  
Vol 53 (7-8) ◽  
pp. 667-675 ◽  
Author(s):  
MOHAMED EL-SAKHAWY ◽  
◽  
HEBAT-ALLAH S. TOHAMY ◽  
AHMED SALAMA ◽  
SAMIR KAMEL ◽  
...  
2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Mohamed El-Sakhawy ◽  
Samir Kamel ◽  
Ahmed Salama ◽  
Hebat-Allah Sarhan

Carboxymethyl cellulose acetate butyrate (CMCAB) has gained increasing importance in several fields, particularly in coating technologies and pharmaceutical research. CMCAB is synthesized by esterification of CMC sodium salt with acetic and butyric anhydrides. CMCAB mixed esters are relatively high molecular weight (MW) thermoplastic polymers with high glass transition temperatures (Tg). CMCAB ester is dispersible in water and soluble in a wide range of organic solvents, allowing varied opportunity to the solvent choice. It makes application of coatings more consistent and defect-free. Its ability to slow down the release rate of highly water-soluble compounds and to increase the dissolution of poorly soluble compounds makes CMCAB a unique and potentially valuable tool in pharmaceutical and amorphous solid dispersions (ASD) formulations.


2015 ◽  
Vol 6 (2) ◽  
pp. 197-208 ◽  
Author(s):  
Venkata Bharadwaz Vedula ◽  
Maulick Chopra ◽  
Emil Joseph ◽  
Sonal Mazumder

2013 ◽  
Vol 96 (1) ◽  
pp. 240-245 ◽  
Author(s):  
Lei Qiu ◽  
Ziqiang Shao ◽  
Mingshan Yang ◽  
Wenjun Wang ◽  
Feijun Wang ◽  
...  

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