PMID- 18729487
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20081028
LR  - 20081001
IS  - 0743-7463 (Print)
IS  - 0743-7463 (Linking)
VI  - 24
IP  - 19
DP  - 2008 Oct 7
TI  - Micellization and adsorption of a series of succinimide dispersants.
PG  - 10665-73
LID - 10.1021/la801416a [doi]
AB  - The efficiency of a series of nonionic dispersants at stabilizing carbon-rich 
      particles in oil was evaluated. The dispersants were synthesized by coupling a 
      polyamine to two polyisobutylenes terminated at one end with a succinic anhydride 
      (PIBSA). Their chemical composition was characterized by FTIR absorption. The 
      associative strength of the dispersants was determined from their ability to 
      self-associate in solution into reverse micelles. Their critical micelle 
      concentration (CMC) and aggregation number (Nagg) were determined by fluorescence 
      in an apolar solvent, namely hexane. The associative strength of the dispersants 
      was found to increase with increasing number of secondary amines in the polyamine 
      core. The adsorption isotherms describing the adsorption of the dispersants onto 
      carbon black particles were determined and showed the existence of two binding 
      regimes for the dispersants having more amines in their polar core. Much stronger 
      binding occurred at dispersant concentration lower than the CMC. The weaker 
      binding observed at dispersant concentrations larger than the CMC is believed to 
      result from the dispersants having to compete between micellization and 
      adsorption at concentrations above the CMC.
FAU - Shen, Yu
AU  - Shen Y
AD  - Institute for Polymer Research, Department of Chemistry, University of Waterloo, 
      Waterloo, Ontario, Canada.
FAU - Duhamel, Jean
AU  - Duhamel J
LA  - eng
PT  - Journal Article
DEP - 20080827
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
EDAT- 2008/08/30 09:00
MHDA- 2008/08/30 09:01
CRDT- 2008/08/30 09:00
PHST- 2008/08/30 09:00 [pubmed]
PHST- 2008/08/30 09:01 [medline]
PHST- 2008/08/30 09:00 [entrez]
AID - 10.1021/la801416a [doi]
PST - ppublish
SO  - Langmuir. 2008 Oct 7;24(19):10665-73. doi: 10.1021/la801416a. Epub 2008 Aug 27.