@article {45400,
	title = { Synthesis and characterization of partially bio-based polyimides based on biphenylene-containing diisocyanate derived from vanillic acid },
	journal = {European Polymer JOurnal },
	volume = {109},
	year = {2018},
	month = { DEC},
	pages = {257-264},
	type = {Article },
	abstract = {A new bio-based biphenylene-containing diisocyanate, namely, 5,5{\textquoteright}-diisocyanato-2,2{\textquoteright},3,3{\textquoteright}-tetramethoxy-1,1{\textquoteright}-biphenyl (BDI) was synthesized starting from vanillic acid - a lignin-derived phenolic acid. A series of new partially bio-based polyimides was prepared by polycondensation of BDI with five commercially available aromatic dianhydrides. Polyimides exhibited good solubility in organic solvents and medium molecular weights (Mn (GPC, polystyrene standard) = 25,100-32,200 g mol(-1)). Polyimides showed good thermal stability with 10\% degradation temperature and glass transition temperature in the range 459-473 degrees C and 262-329 degrees C, respectively.},
	issn = {0014-3057},
	doi = {10.1016/j.eurpolymj.2018.09.054},
	author = {Kuhire, Sachin S. and Ichake, Amol B. and Grau, Etienne and Cramail, Henri and Wadgaonkar, Prakash P.}
}
@article {48138,
	title = {Synthesis, characterization and UV-crosslinking of aromatic (Co)polycarbonates bearing pendant azido groups},
	journal = {ChemistrySelect},
	volume = {7},
	year = {2022},
	month = {SEP},
	pages = {e202201020},
	type = {Article},
	abstract = {<p>
	A new series of (co)polycarbonates bearing pendent azido groups was synthesized by polycondensation of varying molar proportions of 4, 4{\textquoteright}-(5-azidopentane-2, 2-diyl) diphenol and bisphenol-A with triphosgene. The chemical structures, compositions and random nature of (co)polycarbonates were confirmed by NMR spectroscopy. Inherent viscosities and number-average molecular weights of (co)polycarbonates were in the range 0.63-0.77 dL g(-1) and 35,400-43,400 g mol(-1), respectively indicating the formation of reasonably high molecular weight polymers. (Co)polycarbonates could be cast into tough, transparent and flexible films from chloroform solutions. (Co)polycarbonates were further characterized using IR spectroscopy, XRD, TGA and DSC. The thermal crosslinking of (co)polycarbonates bearing pendant azido groups was studied by DSC analysis. Independently, (co)polycarbonates bearing pendant azido groups were exposed to UV irradiation at wavelength of 254 nm and decomposition reaction of azido groups was monitored by FT-IR spectroscopy. The complete decomposition of azido groups was observed with exposure time of 30 min. The formed cross-linked (co)polycarbonates exhibited improved \% char yield values compared to parent (co)polycarbonates. The measurement of mechanical properties of representative crosslinked (co)polycarbonates indicated increase in tensile strength and Young{\textquoteright}s modulus and decrease in \% elongation compared to corresponding parent linear (co)polycarbonates.</p>
},
	keywords = {Aromatic polycarbonate, Pendant azido group, solution polycondensation, Triphosgene, UV-crosslinking},
	issn = {2365-6549},
	doi = {10.1002/slct.202201020},
	author = {Nagane, Samadhan S. and Kuhire, Sachin S. and Ichake, Amol B. and Talanikar, Aniket A. and Lochab, Bimlesh and Wadgaonkar, Prakash P.}
}
