Synthesis and characterization of polyethylene modified through phase-transfer-catalyzed graft copolymerization

2008 ◽  
Vol 108 (1) ◽  
pp. 140-147 ◽  
Author(s):  
Inderjeet Kaur ◽  
Ramesh Dogra ◽  
Simrat Kaur ◽  
N. Deepika
Keyword(s):  
Graft Copolymerization ◽  
Phase Transfer ◽  
Synthesis And Characterization

Synthesis and characterization of SPE membrane based on sulfonated FEP-g-acrylic acid by radiation induced graft copolymerization for PEM fuel cell

2004 ◽  
Vol 15 (5) ◽  
pp. 270-274 ◽  
Author(s):  
M. Patri ◽  
Varsha R. Hande ◽  
Swati Phadnis ◽  
B. Somaiah ◽  
Suhasini Roychoudhury ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Acrylic Acid ◽  
Graft Copolymerization ◽  
Pem Fuel Cell ◽  
Synthesis And Characterization ◽  
Radiation Induced

Synthesis and characterization of photosensitive polyesters by phase-transfer-catalyzed polycondensation

2003 ◽  
Vol 6 (2) ◽  
pp. 187-196 ◽  
Author(s):  
S. Priyarega ◽  
A. Muthusamy ◽  
K. Kaniappan ◽  
S. C. Murugavel
Keyword(s):  
Phase Transfer ◽  
Synthesis And Characterization

ChemInform Abstract: Synthesis and Characterization of Novel Starburst Phase Transfer Catalyst.

ChemInform ◽  
2011 ◽  
Vol 42 (8) ◽  
pp. no-no
Author(s):  
Mathew Siji ◽  
N. Divia ◽  
T. D. Radhakrishnan Nair ◽  
Karickal R. Haridas
Keyword(s):  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Synthesis And Characterization

scholarly journals Synthesis and Characterization of Hydrogels based on Graft Copolymerization of Acrylamide on Chitin resulted from Enzymatic Isolation of Shrimp Waste

2017 ◽  
Vol 17 (2) ◽  
pp. 59
Author(s):  
Tia Lestari ◽  
Achmad Sjaifullah ◽  
Agung Budi Santoso
Keyword(s):  
Environmental Pollution ◽  
Graft Copolymerization ◽  
Synthesis And Characterization ◽  
Secondary Amide ◽  
Shrimp Waste ◽  
Primary Amide ◽  
Characteristic Functional ◽  
Maximum Value ◽  
Enzymatic Isolation

Shrimp waste containing chitin 15-20%. Chitin can be isolated enzymatically by using proteaseenzymes derived from the waste itself. Waste of shrimp marinated in 1M H2SO4 for 10 days at pH1-2 and do control the pH and concentration of N-total every 24 hours. So that, this process canreduce the use of chemicals and environmental pollution. Enzymatic chitin obtained ash content1.789% and 5.322% of N-total. Results of IR showed characteristic functional groups of chitin areOH 3390.5 cm-1, NH (secondary amide) 3348.71 cm-1, C = O 1648.20 cm-1, C-N at 1313.96 cm-1,C-O 1115, 28 cm-1. Chitin is dissolved in 8% NaOH / Urea 4% for 36 hours (-20oC). Hydrogelsmade with a ratio (1: 6); (1: 8); (1:16); (1:24) w / w. The results showed the increasing amount ofacrylamide monomer, the greater the value% graft and absorption of water. Enzymatic chitinhydrogel showed the maximum value % graft is 2492.073%; and water absorption 1.794 g / g. IRhydrogel results indicate primary amide N-H stretching of acrylamide at 3349.77 and 3202.88 cm-1, C = O 1662.03 cm-1Keywords: hydrogel, chitin, acrylamide, graft copolymerization 

Synthesis and Characterization of Optically Active Poly(N-Acryloyl-L-alanine) in Ionic Lliquids

2014 ◽  
Vol 1035 ◽  
pp. 464-468
Author(s):  
Rui Fan ◽  
Jin Shui Yao
Keyword(s):  
Ethyl Acetate ◽  
Phase Transfer ◽  
Condensation Reaction ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Ammonium Bromide ◽  
Acryloyl Chloride ◽  
Two Phase ◽  
Tetrabutyl Ammonium

The chiral monomer,N-acryloyl-L alanine, was synthesized by condensation reaction between acryloyl chloride and L-alanine using ethyl acetate and water as two-phase solvents, tetrabutyl ammonium bromide as phase transfer catalyst and ethyl acetate as the extraction solvent.And then, poly (N-acryloyl-L-alanine) was successfully prepared by free radical polymerization of above synthesized monomer using 2,2'-Azobis (2-methylpropionitrile) AIBN as initiator in ionic liquids. Their structures were characterized by1HNMR and IR. Optically activities were tested with Rotary Spectrometer. Melting point and glass transition temperature were tested with DSC. The molecular weight of the polymer was characterized with GPC.

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