An efficient microwave-assisted synthesis of optically active polyamides in the presence of ionic liquid and conventional solvent: a comparative study

2010 ◽  
Vol 66 (8) ◽  
pp. 1005-1014 ◽  
Author(s):  
Shadpour Mallakpour ◽  
Zahra Rafiee
Keyword(s):  
Ionic Liquid ◽  
Comparative Study ◽  
Optically Active ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Optically Active Polyamides

scholarly journals Microwave-assisted synthesis and characterization of some optically active poly(ester-imide) thermoplastic elastomers

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Saeed Zahmatkesh ◽  
Abdol Reza Hajipour
Keyword(s):  
Thermal Analyses ◽  
Specific Rotation ◽  
Thermoplastic Elastomers ◽  
Optically Active ◽  
Microwave Assisted Synthesis ◽  
H Nmr ◽  
Microwave Assisted ◽  
Diacid Chloride ◽  
Elemental Analyses

AbstractPyromellitic dianhydride (1) was reacted with L-leucine (2) to result in [N,N'-(pyromellitoyl)-bis-L-leucine diacid] (3). This compound (3) was converted to N,N'-(pyromellitoyl)-bis-L-leucine diacid chloride (4) by reaction with thionyl chloride. The microwave-assisted polycondensation of this diacid chloride (4) with polyethyleneglycol-diol (PEG-200) and/or three synthetic bisphenols furnish a series of new PEIs and Co-PEIs in a laboratory microwave oven (Milestone). The resulting polymers and copolymers have inherent viscosities in the range of 0.31- 0.53 dl g-1. These polymers are optically active, thermally stable and soluble in polar aprotic solvents such as DMF, DMSO, NMP, DMAc and sulfuric acid. All of the above polymers were fully characterized by IR spectroscopy, 1H NMR spectroscopy, elemental analyses, specific rotation and thermal analyses. Some structural characterizations and physical properties of these optically active PEIs and Co-PEIs are reported.

Rhombic dodecahedral Fe3O4: ionic liquid-modulated and microwave-assisted synthesis and their magnetic properties

CrystEngComm ◽  
2011 ◽  
Vol 13 (20) ◽  
pp. 6017 ◽  
Author(s):  
Xiyan Li ◽  
Dapeng Liu ◽  
Shuyan Song ◽  
Xiao Wang ◽  
Xin Ge ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Ionic Liquid ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

scholarly journals Ionic-liquid-based synthesis of GaN nanoparticles

2020 ◽  
Vol 56 (15) ◽  
pp. 2312-2315 ◽  
Author(s):  
Hannah F. Gaiser ◽  
Radian Popescu ◽  
Dagmar Gerthsen ◽  
Claus Feldmann
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Quantum Yield ◽  
Band Gap ◽  
Green Emission ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

GaN nanoparticles were prepared via microwave-assisted synthesis in ionic liquids. They are well-crystallized (β-GaN) and nanosized (3–8 nm), exhibit a band gap of 3.9 eV, and show green emission with a remarkable quantum yield of 55%.

Microwave-assisted synthesis of block copolymer nanoparticles via RAFT with polymerization-induced self-assembly in methanol

2016 ◽  
Vol 7 (2) ◽  
pp. 297-301 ◽  
Author(s):  
Elden T. Garrett ◽  
Yiwen Pei ◽  
Andrew B. Lowe
Keyword(s):  
Block Copolymer ◽  
Comparative Study ◽  
Self Assembly ◽  
Dispersion Polymerization ◽  
Microwave Assisted Synthesis ◽  
Conductive Heating ◽  
Microwave Assisted

A comparative study of microwave-assisted (MA) and conductive heating in RAFT dispersion polymerization formulations in MeOH that result in polymerization-induced self-assembly is detailed.

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