@article { ISI:000228499400014,
	title = {Main chain thermotropic liquid crystalline polyurethanes containing biphenyl mesogens based on novel AB-type self-polycondensation route: FT-IR and XRD studies},
	journal = {Journal of Polymer Science Part A-Polymer Chemistry},
	volume = {43},
	number = {9},
	year = {2005},
	month = {MAY},
	pages = {1903-1912},
	publisher = {JOHN WILEY \& SONS INC},
	type = {Article},
	address = {111 RIVER ST, HOBOKEN, NJ 07030 USA},
	abstract = {<p>The detailed mesophasic characterization of main chain liquid crystalline polyurethanes containing biphenyl mesogen, which were synthesized by the novel AB-type self-polycondensation approach, was carried out by using Differential Scanning Calorimetry (DSC), Polarized Optical Microscopy (POM), variable temperature X-ray Diffraction (XRD), and Fourier Transform Infrared (FT-IR) spectroscopic studies. The type of mesophase present in these polymers was identified to be the smectic A phase by POM and XRD studies. The smectic layer thickness was found to increase as the length of the spacer increased. The effect of temperature on the hydrogen bonding was analyzed by FT-IR studies. The curve-fitting analysis of the NH stretching and C=O stretching modes of vibrations indicated a gradual decrease in hydrogen bonding during the transition from the crystalline state to the mesophase. The mesophase to isotropic liquid transition was then accompanied by the complete disappearance of the hydrogen bonding. The biphenyl bands also showed changes during phase transitions due to the coupling of biphenyl vibration modes with the urethane linkage attached to it. (c) 2005 Wiley Periodicals, Inc.</p>},
	keywords = {FT-IR, liquid-crystalline polymers, polyurethanes, XRD studies},
	issn = {0887-624X},
	doi = {10.1002/pola.20668},
	author = {Ranganathan, T. and Gowd, E. B. and Ramesh, C. and Kumar, Anil}
}
@article { ISI:000268923200029,
	title = {Solubilization and conformational behavior of zein in aqueous solution of dodecyldimethylethylammonium bromide (DDAB)},
	journal = {Colloids and Surfaces A-Physicochemical and Engineering Aspects},
	volume = {346},
	number = {1-3},
	year = {2009},
	month = {AUG},
	pages = {195-201},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>The solubilization and conformational behavior of Zein in the presence of cationic surfactant, dodecyldimethylethylammonium bromide (DDAB) have been studied. The colloidal properties of DDAB in the absence and presence of Zein have also been investigated using physico-chemical and spectroscopy methods. The surfactant appears to bind to Zein at concentrations below the critical micelle concentration (cmc) and the binding becomes weaker at concentrations above the cmc. The interaction between DDAB and Zein depends on the chemical structure and molecular parameters (conformation, molar mass, charge) of the protein. The schematic sketches of the molecular mechanisms of the complex formation between like-charged proteins and surfactants have been proposed. (C) 2009 Elsevier B.V. All rights reserved.</p>},
	keywords = {Absorbance spectroscopy, Aggregation number, conductivity, DDAB, FT-IR, Surface tension, viscosity, Zein},
	issn = {0927-7757},
	doi = {10.1016/j.colsurfa.2009.06.016},
	author = {Mehta, S. K. and Bhawna and Bhasin, K. K. and Kumar, Anil}
}
