@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 {48204,
	title = {Synthesis and characterization of partially biobased aromatic (Co)polycarbonates containing biphenylene units and pendant pentadecyl chains},
	journal = {Macromolecular Chemistry and Physics},
	volume = {223},
	year = {2022},
	month = {JUL},
	pages = {2100449},
	type = {Article},
	abstract = {<p>
	2-Pentadecyl-[1,1{\textquoteright}{\textquoteright}-biphenyl]-4,4{\textquoteright}{\textquoteright}-diol (PBD) is synthesized starting from cashew nut shell liquid-a by-product of cashew processing industry. A new series of partially biobased aromatic (co)polycarbonates possessing biphenylene units and pendant pentadecyl chains is synthesized by solution polycondensation of PBD or varying compositions of PBD and bisphenol-A with triphosgene in dry dichloromethane. Inherent viscosities and number average molecular weights of (co)polycarbonates are in the range 0.51-1.24 dL g(-1) and 18 x 10(3)- 43.4 x 10(3) g mol(-1), respectively indicating the formation of reasonably high molecular weight polymers. Flexible, transparent, and free-standing films of (co)polycarbonates can be cast from chloroform solution. (Co)polycarbonates are characterized using Fourier transform infrared spectroscopy (FTIR), H-1 NMR, C-13 NMR spectroscopy, X-ray diffraction (XRD), differential scanning calorimetry, and thermogravimetric analysis. T-10 and T-g values of (co)polycarbonates are in the range 417-433 and 8-147 degrees C, respectively. It is demonstrated that the T-g values can be tuned by incorporation of appropriate mol\% of PBD as a comonomer in Bisphenol-A-based copolycarbonates. The lowering of the T-g values of (co)polycarbonates can be attributed primarily to the packing disruptive effect of flexible pentadecyl chains. Furthermore, the effect of incorporation of PBD as a comonomer on water contact angle values of (co)polycarbonates is evaluated.</p>
},
	keywords = {aromatic polycarbonates, biobased bisphenol, Cashew nut shell liquid, pentadecyl chain, Renewable resources},
	issn = {1022-1352},
	doi = {10.1002/macp.202100449},
	author = {Ichake, Amol B. and Nagane, Samadhan S. and Jadhav, Uday A. and Torris, Arun and Grau, Etienne and Cramail, Henri and Wadgaonkar, Prakash P.}
}
