Buscar
Mostrando ítems 1-10 de 8551
CHARACTERIZATION OF ALKALICELLULOSE OF PINUS RADIATA AND EUCALYPTUS GLOBULUS BASED ON ITS MOLECULAR WEIGHT AND DEGREE OF ACCESIBILITY
(Sociedad Chilena de Química, 2001)
Cellulose swelling by protic solvents: which properties of the biopolymer and the solvent matter?
(SPRINGER, 2008)
The question posed in the title has been addressed by studying the swelling of celluloses at 20 C by twenty protic solvents, including water; linear- and branched-chain aliphatic alcohols; unsaturated aliphatic alcohols, ...
Acetylation of cellulose in LiCl-N,N-dimethylacetamide: first report on the correlation between the reaction efficiency and the aggregation number of dissolved cellulose
(SPRINGER, 2011)
The acylation of three cellulose samples by acetic anhydride, Ac(2)O, in the solvent system LiCl/N,N-dimethylacetamide, DMAc (4 h, 110 A degrees C), has been revisited in order to investigate the dependence of the reaction ...
Synthesis and characterization of microcrystalline cellulose produced from bacterial cellulose
(Springer, 2011-12-01)
In this study, microcrystalline cellulose (MCC) was prepared from the acid hydrolysis of bacterial cellulose (BC) produced in culture medium of static Acetobacter xylinum. The MCC-BC produced an average particle size between ...
Synthesis and characterization of microcrystalline cellulose produced from bacterial cellulose
(Springer, 2011-12-01)
In this study, microcrystalline cellulose (MCC) was prepared from the acid hydrolysis of bacterial cellulose (BC) produced in culture medium of static Acetobacter xylinum. The MCC-BC produced an average particle size between ...
Biodegradation evaluation of bacterial cellulose, vegetable cellulose and poly (3-hydroxybutyrate) in soil
(Assoc Brasil Polimeros, 2015-03-01)
In recent years, the inappropriate disposal of polymeric materials has increased due to industrial development and increase of population consumption. This problem may be minimized by using biodegradable polymers, such as ...
Sisal cellulose acetates obtained from heterogeneous reactions
(BUDAPEST UNIV TECHNOL & ECON, 2008)
In the present work, cellulose obtained from sisal, which is a source of rapid growth, was used. Cellulose acetates were produced in heterogeneous medium, using acetic anhydride as esterifying agent and iodine as catalyst, ...
Thermal behavior of cellulose acetate produced from homogeneous acetylation of bacterial cellulose
(Elsevier B.V., 2008-05-30)
Cellulose acetate (CA) is one of the most important cellulose derivatives and its main applications are its use in membranes, films, fibers, plastics and filters. CAs are produced from cellulose sources such as: cotton, ...
Thermal behavior of cellulose acetate produced from homogeneous acetylation of bacterial cellulose
(Elsevier B.V., 2008-05-30)
Cellulose acetate (CA) is one of the most important cellulose derivatives and its main applications are its use in membranes, films, fibers, plastics and filters. CAs are produced from cellulose sources such as: cotton, ...