THE EFFECTS OF MIXED MICELLES OF SURFACTANTS ON POLYMERIZATION OF ACRYLAMIDE
作者:
ZENG XIANCHENG,
WANG QIAN,
CHENG SIQING,
ZHANG YUANQIN,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1999)
卷期:
Volume 20,
issue 4
页码: 1273-1283
ISSN:0193-2691
年代: 1999
DOI:10.1080/01932699908943850
出版商: Taylor & Francis Group
关键词: Mixed micelle of surfactants;Polymerization of acrylamide;Thermokinetics;Time variable method
数据来源: Taylor
摘要:
The polymerization of acrylamide in mixed micellar solutions of surfactants, initiated by NaHSO3has been studied at 20 and 3Q° C with time variable method of thermokinetics for 1. 5-order reaction. The results indicate that the mixed micellar systems of cationic or anionic with zwitterionic surfactants (SLS/ CTAB, SLS/ TTAB, SLS/ SDS) and cationic with nonionic surfactants (Brij 357sol; CTAB, Bri-J35/TTAB, Brij35/ DTAB) have catalytic effect on the polymerization in the order, at 20° C. SLS/ SDS⩽ SLS/ TTAB⩽ SLS/ CTAB⩽ Brij35/ CTAB at 30° C SLS/ SDS⩽ SLS/ TTAB≈ / CTAB⩽ Bri-j35/ DTAB= sBrij35/ TTAB as Brij35/ CTAB, while Brij35/ SDS mixed micellar system has inhibition. These effects are attributed to the effect of the Stern layer of mixed micelles on the step of initiator (HSOT) to form free radical.
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