PMID- 37549381
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230822
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 39
IP  - 33
DP  - 2023 Aug 22
TI  - Investigating the Influence of Aromatic Counterions on the Micellar Structure and 
      Aggregation Behavior of Morpholinium-Based Surface-Active Ionic Liquids in an 
      Aqueous Solution.
PG  - 11684-11693
LID - 10.1021/acs.langmuir.3c01257 [doi]
AB  - Two morpholinium-based surface-active ionic liquids (SAILs) with aromatic 
      counterions were synthesized, namely, n-dodecyl-n-methylmorpholinium salicylate 
      [C(12)mmor][Sal] and n-dodecyl-n-methylmorpholinium 3-hydroxy-2-naphthoate 
      [C(12)mmor][3-h-2-n], and explored their aggregation behavior in aqueous 
      solutions systematically. Electrical conductivity, small-angle neutron scattering 
      (SANS), surface tension (ST), and UV-vis spectroscopy measurements were employed 
      to determine various thermodynamic, micellar, and interfacial parameters, like 
      the degree of counterion binding (beta), critical micelle concentration (CMC), 
      minimum area per molecule (A(min)), surface excess concentration (Gamma(max)), 
      standard Gibbs free energy of adsorption (DeltaG(ad)(0)), aggregation number 
      (N(agg)), standard Gibbs free energy of micellization (DeltaG(m)(0)), standard 
      enthalpy of micelle formation (DeltaH(m)(0)), and the standard entropy of 
      micellization (DeltaS(m)(0)) in an aqueous solution. Incorporating the aromatic 
      counterions favors significantly excellent micellization properties over 
      conventional halogenated SAILs such as [C(12)mmor][Br]. SANS analysis revealed 
      that upon changing the counterion from salicylate to 3-hydroxy-2-naphthoate, the 
      structure changed from prolate ellipsoidal micelles to large unilamellar 
      vesicles. Also, increasing the concentration in the case of [C(12)mmor][Sal] 
      resulted in a lower aggregation number.
FAU - Viradiya, Ravi A
AU  - Viradiya RA
AD  - Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, 
      CHARUSAT University, Changa 388421, Gujarat, India.
FAU - Patel, Niraj
AU  - Patel N
AD  - Organic Chemistry Department, Institute of Science and Technology for Advanced 
      Research (ISTAR), The CVM University, Vallabh Vidyanagar, Anand 388120, Gujarat, 
      India.
FAU - Aswal, Vinod K
AU  - Aswal VK
AUID- ORCID: 0000-0002-2020-9026
AD  - Solid State Physics Division, Bhabha Atomic Research Center (BARC), Trombay, 
      Mumbai 400085, India.
FAU - Patel, Vaibhav K
AU  - Patel VK
AD  - Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, 
      CHARUSAT University, Changa 388421, Gujarat, India.
FAU - Panjabi, Sanjay H
AU  - Panjabi SH
AUID- ORCID: 0000-0002-6653-7252
AD  - Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, 
      CHARUSAT University, Changa 388421, Gujarat, India.
LA  - eng
PT  - Journal Article
DEP - 20230807
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
SB  - IM
EDAT- 2023/08/07 19:10
MHDA- 2023/08/07 19:11
CRDT- 2023/08/07 16:43
PHST- 2023/08/07 19:11 [medline]
PHST- 2023/08/07 19:10 [pubmed]
PHST- 2023/08/07 16:43 [entrez]
AID - 10.1021/acs.langmuir.3c01257 [doi]
PST - ppublish
SO  - Langmuir. 2023 Aug 22;39(33):11684-11693. doi: 10.1021/acs.langmuir.3c01257. Epub 
      2023 Aug 7.