@article { ISI:000240085700003,
	title = {Synthesis and characterization of novel hydrophobically end-capped poly(ethylene oxide)s [PEOs]},
	journal = {Macromolecular Symposia},
	volume = {241},
	year = {2006},
	note = {Indo-French Symposium on Fibrillar Networks as Advanced Materials, Inst Charles Sadron, Strasbourg, FRANCE, SEP 21-23, 2005},
	month = {JUL},
	pages = {9-13},
	publisher = {Indo-French Ctr Promot Adv Res; Indian Assoc Cultivat Sci; Kolkata; GUENET; CNRS},
	type = {Article},
	address = {PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY},
	abstract = {<p>We report on the synthesis and characterization of a novel hydrophobically modified end-capped poly(ethylene oxide)s. The end-capping agent of this polymer was designed and synthesised from a renewable resource material namely, gallic acid (i.e. 3,4,5-trihydroxybenzoic acid), the byproduct of tannin industry. The hydroxyl groups at 3, 4 and 5 positions of gallic acid provide an opportunity for varying the hydrophobicity of the compound. The hydrophobic end-capping compound, 3,4,5tridodecyloxy bezoylazide was prepared from gallic acid and PEGS with different chain lengths (of number average molecular weights, 10000 and 35000 g/mol) were endcapped. using 3,4,5-tridodecyloxybenzoyl azide. The quantitative analysis of end-capping in the polymers was demonstrated by H-1-NMR spectroscopy and the rheological studies were carried out in the surfactant solutions.</p>},
	keywords = {end-capped PEOs, hydrophobically modified polymers, water-soluble polymers},
	issn = {1022-1360},
	doi = {10.1002/masy.200650902},
	author = {Badiger, Manohar V. and Kadam, Vijay S. and Lele, Ashish K. and Wadgaonkar, P. P. and Hourdet, Dominique}
}
@article { ISI:000277423200006,
	title = {Hydrophobically modified poly(vinyl alcohol) using alkoxy-substituted methyl gallate: synthesis and rheology},
	journal = {Journal of Polymer Science Part B-Polymer Physics},
	volume = {48},
	number = {10},
	year = {2010},
	month = {MAY},
	pages = {1054-1063},
	publisher = {JOHN WILEY \& SONS INC},
	address = {111 RIVER ST, HOBOKEN, NJ 07030 USA},
	abstract = {<p>Hydrophobically modified poly(vinyl alcohol) (HMPVA) polymers were synthesized by potassium t-butoxide-catalyzed reaction of PVA with methyl 3,4,5-tris(n-octyloxy) benzoate (MGC(8))/3,4,5-tris(n-dodecyloxy) benzoate (MGC(12)) and 1,3-propane sultone. The concentration of 1,3-propane sultone was kept constant at 10 mol \%. and that of MGC(8) (2, 3, and 4 mol \%)/MGC(12) (2 and 3 mol \%) was varied to obtain HMPVAs with different hydrophobic contents. The incorporation of MGC(8)/MGC(12) and 1,3-propane sultone onto HMPVA was confirmed by NMR spectroscopy. Rheological properties of aqueous solutions also confirmed the presence of hydrophobic and charged functional groups on HMPVAs. In the semidilute regime, the specific viscosity of HMPVAs followed concentration scaling that is typical of polyelectrolytes. At higher concentrations, the HMPVA solutions with 3 and 4 mol \% of MGC(8) exhibited large increase in specific viscosity. Oscillatory experiments on these solutions exhibited gel-like behavior at polymer concentrations of 40-50 g/L. Confocal microscopy images of HMPVA with 4 mol \% of MGC(8) clearly indicated the existence of microgels. The tendency of formation of microgels further increased with increasing chain length of the hydrophobe, that is, with MGC(12). These samples exhibited rheological behavior that is typical of soft solids and was therefore probed by the strain-rate frequency superposition technique reported recently in the literature. HMPVAs with improved rheological properties show potential applications as thickeners in cosmetic creams, lotions and as drug carriers in pharmaceutical formulations. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 1054-1063, 2010</p>},
	keywords = {gallic acid, hydrophobically modified poly(vinyl alcohol), Rheology, water-soluble polymers},
	issn = {0887-6266},
	doi = {10.1002/polb.21995},
	author = {Shedge, Aarti S. and Wadgaonkar, Prakash P. and Lele, Ashish K. and Badiger, Manohar V.}
}
