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Synthesis and Characterization of Quaternary Ammonium Compounds of Guar Gum and Hydroxyethyl Guar Gum
Author(s) -
Patel S. P.,
Patel R. G.,
Patel V. S.
Publication year - 1989
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19890410509
Subject(s) - guar gum , guar , chemistry , decomposition , ether , ammonium , polymer chemistry , viscometer , organic chemistry , nuclear chemistry , viscosity , materials science , biochemistry , composite material
The quaternary ammonium compounds of guar gum (QAGG) and hydroxylethyl guar gum ether (QAHEG) were prepared by the reaction of guar gum (GG) or hydroxyethyl guar gum ether (HEG) with amine condensates of epichlorohydrin using either aliphatic or heterocyclic tertiary amines. These quaternary salts were characterized by infra‐red spectra, viscometry and thermogravimetry. The temperature characteristics like initial decomposition temperature (IDT), ten percent volatilization temperature (T 10 ), temperature of maximum rate of decomposition (T max ), integral procedural decomposition temperature (IPDT) and activation energy of QAGG and QAHEG salts are compared with those of GG and HEG.