@article { ISI:000233391900008,
	title = {Design, syntheses, and characterization of new thermoplastic polyureas based on 3,4-ethylenedioxythiophene},
	journal = {Journal of Polymer Science Part A-Polymer Chemistry},
	volume = {43},
	number = {23},
	year = {2005},
	month = {DEC},
	pages = {5823-5830},
	publisher = {WILEY-BLACKWELL},
	type = {Article},
	address = {111 RIVER ST, HOBOKEN 07030-5774, NJ USA},
	abstract = {<p>New thermoplastic polyureas labeled PUn (n = 2, 3, 4, 6, 7, 9, or 10), based on 3,4-ethylenedioxythiophene (EDOT) with flexible aliphatic spacers, were synthesized and characterized for the first time. EDOT was chosen as a replacement for the aromatic phenyl group in conventional thermoplastics based on urea linkages to improve solubility without compromising the thermal properties. As synthesized, all the samples exhibited a semicrystalline nature. The glass-transition and melting temperatures showed a strong dependence on the spacer length. A comparison of the thermal properties of these polyureas with the corresponding phenyl analogues indicated that EDOT was a viable heteroatomic analogue of the phenyl group to be inserted into the main-chain polyureas without hampering their thermal stability. The polyureas with spacer lengths greater than hexamethylene formed transparent gels in N-methylpyrrolidone, 1,1,2,2-tetrachloroethane, and dimethyl sulfoxide. The molecular packing of the polyureas was assigned with wide-angle X-ray diffraction studies. (c) 2005 Wiley Periodicals, Inc.</p>},
	keywords = {3, 4-ethylenedioxythiophene, heteroaromatic polymers, Polyurea, polyurea gels, Thermogravimetric analysis (TGA), thermoplastics, WAXS},
	issn = {0887-624X},
	doi = {10.1002/pola.21065},
	author = {Ojha, U. P. and Ramesh, C. and Kumar, Anil}
}
@article {49403,
	title = {Aromatic (Co)polycarbonates bearing pendant norbornenyl groups: Synthesis, characterization and post-polymerization modification},
	journal = {High Performance Polymers},
	year = {2024},
	month = {AUG},
	type = {Article; Early Access},
	abstract = {<p>
	A homo- and three co-polycarbonates (PC-NBs) bearing pendant norbornenyl groups were synthesized via solution polycondensation of triphosgene with 4, 4{\textquoteright}-(bicyclo (2.2.1) hept-5-en-2 yl methylene) bis (2-methoxyphenol) (BPA-NB) or various mol \% compositions of BPA-NB and bisphenol-A, respectively. 1H-NMR spectroscopy confirmed the chemical structure and composition of PC-NBs. Inherent viscosity and number-average molecular weight (Mn) values of PC-NBs were in the range 0.44 - 0.64 dL g-1 and 21,800 - 34,100 g mol-1, respectively, indicating the formation of polymers of medium to reasonably high molecular weights. Tough, transparent, and flexible films of PC-NBs could be cast from chloroform solution. X-Ray diffraction studies indicated the amorphous nature of PC-NBs. Glass transition temperature (Tg) values, determined by DSC analysis, of PC-NBs were in the range 154 - 175 degrees C and Tg values increased with the increase in mol \% of BPA-NB. The post-polymerization modification of a representative PC-NB was demonstrated using 3,6-diphenyl-1,2,4,5-tetrazine via tetrazine-ene reaction.</p>
},
	keywords = {(co)polycarbonates, norbornenyl groups, post-polymerization modification, tetrazine-ene click reaction, thermoplastics},
	issn = {0954-0083},
	doi = {10.1177/09540083241279209},
	author = {Talanikar, Aniket A. and Nagane, Samadhan S. and Wadgaonkar, Prakash P. and Rashinkar, Gajanan S.}
}
