PMID- 17665379
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20080109
LR  - 20090804
IS  - 0947-6539 (Print)
IS  - 0947-6539 (Linking)
VI  - 13
IP  - 30
DP  - 2007
TI  - Comparison of physicochemical properties of new ionic liquids based on 
      imidazolium, quaternary ammonium, and guanidinium cations.
PG  - 8478-88
AB  - More than 50 ionic liquids were prepared by using imidazolium, quaternary 
      ammonium, and guanidinium cations and various anions. In these series, different 
      cationic structures such as 1-benzyl-3-methylimidazolium [Bzmim]+, 
      1,3-dibenzylimidazolium [BzmiBz]+, 1-octyl-3-methylimidazolium [C8mim]+, 
      1-decyl-3-methylimidazolium [C10mim]+, tricapryl-methylammonium [Aliquat]+, 
      benzyltriethylammonium [BzTEA]+, phenyltrimethylammonium [PhTMA]+, and 
      dimethyldihexylguanidinium [DMG]+ were combined with anions, p-toluenesulfonate 
      [TSA](-), dicyanoamide [DCA]-, saccharine (2-sulfobenzoic acid imide sodium salt) 
      [SAC]-, trifluoroacetate [TFA]-, bis(trifluoromethanesulfonyl)imide [Tf2N]-, 
      trifluoromethanesulfonate [TfO]-, and thiocyanate [SCN]-. Important physical data 
      for these ionic liquids are collated, namely solubility in common solvents, 
      viscosity, density, melting point and water content. Apart from the viscosity, 
      the Newtonian and non-Newtonian behavior of these ionic liquids is also 
      disclosed. Stability of these ionic liquids under thermal, basic, acidic, 
      nucleophilic, and oxidative conditions was also studied. The features of the 
      solid-liquid phase transition were analyzed, namely the glass transition 
      temperature and the heat capacity jump associated with the transition from the 
      non-equilibrium glass to the metastable supercooled liquid. A degradation 
      temperature of each ionic liquid was also determined. Comparisons of the 
      properties of various ionic liquids were made.
FAU - Kulkarni, Prashant S
AU  - Kulkarni PS
AD  - REQUIMTE, Departamento de Quimica, FCT-UNL, 2829-516 Caparica, Portugal.
FAU - Branco, Luis C
AU  - Branco LC
FAU - Crespo, Joao G
AU  - Crespo JG
FAU - Nunes, M Cristiana
AU  - Nunes MC
FAU - Raymundo, Anabela
AU  - Raymundo A
FAU - Afonso, Carlos A M
AU  - Afonso CA
LA  - eng
PT  - Journal Article
PL  - Germany
TA  - Chemistry
JT  - Chemistry (Weinheim an der Bergstrasse, Germany)
JID - 9513783
EDAT- 2007/08/01 09:00
MHDA- 2007/08/01 09:01
CRDT- 2007/08/01 09:00
PHST- 2007/08/01 09:00 [pubmed]
PHST- 2007/08/01 09:01 [medline]
PHST- 2007/08/01 09:00 [entrez]
AID - 10.1002/chem.200700965 [doi]
PST - ppublish
SO  - Chemistry. 2007;13(30):8478-88. doi: 10.1002/chem.200700965.