@article {49317,
	title = {Catechol- and phenolic hydroxyl-functionalized partially bio-based (Co) poly(ether sulfone)s with multifarious applicability},
	journal = {European Polymer Journal},
	volume = {220},
	year = {2024},
	month = {NOV},
	pages = {113484},
	type = {Article},
	abstract = {<p>
	A largely bio-based new bisphenol, namely, 4,4 {\textquoteleft}-((3,4-dimethoxyphenyl)methylene)-bis(2-methoxyphenol) (DMBM) was synthesized by the reaction of veratraldehyde with guaiacol. DMBM and varying compositions of DMBM and bisphenol A were polycondensed with bis(4-fluorophenyl) sulfone to afford reasonably high molecular weight film-forming (co)poly(ether sulfone)s possessing built-in methoxyl groups. T10 and Tg values of (co)poly(ether sulfone)s were in the range 382-478 degrees C and 171-187 degrees C, respectively indicating their good thermal stability and the values decreased with increase in mol \% incorporation of DMBM. The methoxyl groups present in (co)poly (ether sulfone)s were quantitatively de-blocked resulting in the formation of corresponding polymers possessing pendant catechol moieties and free phenolic hydroxyl groups. By virtue of the presence of these functional moieties, (co)poly(ether sulfone)s are amenable for post-polymerization modifications, and exhibited properties such as antimicrobial (23 mm against Staphylococcus aureus and 18 mm against Escherichia coli)), antioxidant (72 \% scavenger of free radicals), adhesive (2.24 MPa lap shear strength) and usefulness as redox-active agent in zinc-ion batteries. These data underscore the promise of DMBM as a versatile monomer of wider utility for the synthesis of functional (co)poly(ether sulfone)s capable of expanding their applicability beyond the conventional ones.</p>
},
	keywords = {(Co)poly(ether sulfone)s, adhesive, Antimicrobial, Antioxidant, bio-based, bisphenol, Zinc-ion batteries},
	issn = {0014-3057},
	doi = {10.1016/j.eurpolymj.2024.113484},
	author = {Wale, Apparav K. and Jagtap, Ashish S. and Pandey, Priyanshi R. and Dastager, Syed G. and Shelke, Manjusha V. and Ambade, Ashootosh V. and Wadgaonkar, Prakash P.}
}
@article {49842,
	title = {Utilization of bisphenol based on lignin-derived chemicals for the synthesis of partially bio-based aromatic copolyesters},
	journal = {Journal of Macromolecular Science Part A-Pure and Applied Chemistry},
	volume = {63},
	year = {2026},
	month = {JAN},
	pages = {83-90},
	type = {Article},
	abstract = {<p>
	New aromatic copolyesters were synthesized by phase-transfer catalyzed interfacial polycondensation of 4,4 {\textquoteleft}-((3,4-dimethoxyphenyl)methylene)bis(2-methoxyphenol) (DMBM) with isophthaloyl chloride (IPC) and a mixture of (50:50 mol \%) IPC and terephthaloyl chloride (TPC). Additionally, a series of copolyesters was synthesized by polycondensation of varying compositions of DMBM and bisphenol A with IPC. Copolyesters exhibited inherent viscosity and Mn values in the range 0.59-0.98 dL/g and 15,840-49,460 g/mol, respectively, indicating formation of reasonably high molecular weight polymers. Copolyesters could be cast into tough, transparent and flexible films from chloroform solution. UV-vis measurements on films gave values of T400, T450 and cut-off wavelength in the range 80-84 \%, 83-89 \% and 324-334 nm, respectively. The formation of random copolyesters was evidenced by 13C NMR spectroscopic studies. Copolyesters exhibited good thermal stability with 10\% weight loss temperature in the range 391-438 degrees C. The Tg values of copolyesters were in the range 162-180 degrees C and Tg values decreased with an increase in mol\% content of DMBM. Copolyesters exhibited tensile strength, Young{\textquoteright}s modulus and elongation at break values in the range 83.55-70.68 MPa, 2.11-1.31 GPa and 10.52-5.45 \%, respectively.</p>
},
	keywords = {Aromatic polyesters, bio-based, bisphenol, methoxyl, Thermal properties},
	issn = {1060-1325},
	doi = {10.1080/10601325.2025.2589929},
	author = {Wale, Apparav K. and Ambade, Ashootosh V. and Wadgaonkar, Prakash P.}
}
