HDTMABHexa-Dexyl-Tri-Methyl-Ammonium Bromide
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In order to prepare a lactide intercalated clay mixture as a precursor for synthesis of PLACN and to obtain an ordered morphology and high MW, we have modified Cloisite [R] Na organically by using two organic surfactant modifiers, hexadecyltrimethylammonium bromide (HDTMAB) and dioctadecyldimethylamrnonium bromide (DODMAB).
Clay modifications have been carried out by adding HDTMAB and DODMAB modifiers up to cationic exchange capacities (CEC) of 1.1, 1.2, 2.0, and 4.0.
HDTMAB modifier provides a lower interlayer spacing (17.86 A) compared to DODMAB (20.08 A), possibly because of the shorter chain length of HDTMAB.