@article { ISI:000226756100018,
	title = {Preparation, characterization, and water-sorption study of polyvinyl alcohol based hydrogels with grafted hydrophilic and hydrophobic segments},
	journal = {Journal of Applied Polymer Science},
	volume = {95},
	number = {5},
	year = {2005},
	month = {MAR},
	pages = {1129-1142},
	publisher = {JOHN WILEY \& SONS INC},
	type = {Article},
	address = {111 RIVER ST, HOBOKEN, NJ 07030 USA},
	abstract = {<p>The interpenetrating polymer network hydrogels based on poly(vinyl alcohol) were obtained by graft copolymerization of acrylamide and styrene onto polyvinyl alcohol in the presence of N,N{\textquoteright}-methylene bisacrylamide as a crosslinking agent. The hydrogels were characterized by optical microscopy, scanning electron microscopy, infrared spectral analysis, differential scanning calorimeter, and thermogravimetric analysis. The hydrogels showed enormous swelling in aqueous medium and displayed swelling characteristics, which were highly dependent on the chemical composition of the hydrogels and pH of the swelling medium. The kinetics of water uptake and the mechanisms of water transport were studied as a function of composition of the hydrogel and pH of the swelling medium. (C) 2005 Wiley Periodicals, Inc.</p>},
	keywords = {Characterization, equilibrium swelling, grafting, IPN hydrogels, polyvinyl alcohol},
	issn = {0021-8995},
	doi = {10.1002/app.21344},
	author = {Shukla, S. and Bajpai, A. K. and Kulkarni, R. A.}
}
@article { ISI:000265316800007,
	title = {Polybenzimidazoles tethered with N-Phenyl 1,2,4-triazole units as polymer electrolytes for fuel cells},
	journal = {Journal of Polymer Science Part A-Polymer Chemistry},
	volume = {47},
	number = {9},
	year = {2009},
	month = {MAY},
	pages = {2289-2303},
	publisher = {JOHN WILEY \& SONS INC},
	address = {111 RIVER ST, HOBOKEN, NJ 07030 USA},
	abstract = {<p>Polybenzimidazole (PBI) polymers tethered with N-phenyl 1,2,4-triazole (NPT) groups were prepared from a newly synthesized aromatic diacid, 3{\textquoteright}-(4-phenyl-4H-1,2,4-triazole-3,5-diyl) dibenzoic acid (PTDBA). The obtained polymers show superior thermal and chemical stability and good solubility in many aprotic solvents. The inherent viscosities of all polymers were around 1 dL/g. They exhibit high thermal stability with initial decomposition temperature ranging from 515 to 530 degrees C, high glass transition temperature ranging from 375 to 410 degrees C, and good mechanical properties with tensile stress in the range of 66-98 MPa and modulus 1897-2600 MPa. XRD analysis indicates that these polymers are amorphous in nature. PhysicochemiCal properties such as water and phosphoric acid-uptake, oxidative stability, and proton conductivity of membranes of these polymers have also been determined. The proton conductivity ranged from 4.7 x 10(-3) to 1.8 x 10(-2) S cm(-1) at 175 degrees C in dry conditions. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 2289-2303, 2009</p>},
	keywords = {fuel cells, Polybenzimidazole, synthesis and characterization, Triazole},
	issn = {0887-624X},
	doi = {10.1002/pola.23310},
	author = {Potrekar, R. A. and Kulkarni, M. P. and Kulkarni, R. A. and Vernekar, S. P.}
}
