@article {46797,
	title = {Renewing polyethylene: insertion copolymerization of sugar derived hydrophilic monomers with ethylene},
	journal = {European Polymer Journal},
	volume = {134},
	year = {2020},
	month = {JUL },
	pages = {109775},
	type = {Article},
	abstract = {<p>Although highly desirable, insertion copolymerization of renewable resource derived functional olefins with ethylene has been rarely investigated. Herein, we report insertion copolymerization of challenging sugar derived isohexide mono-enes with ethylene in the presence of Pd-phosphinesulfonate acetonitrile catalyst (C1). Thus, copolymerization of ethylene with isomannide mono-ene (2a), isosorbide mono-ene (2b{\textquoteright}), isoidide mono-ene (2c) and methacryl-2,3,4,6-tetra-O-acetyl-D glucopyranoside (2d) afforded corresponding functionalized polyethylene (P2a-1 to P2d-1). High temperature proton NMR investigations revealed enchainment of 2a-2c in polyethylene backbone and the highest incorporation of 1.45\% was observed for 2c. The high temperature proton NMR results were further corroborated by solid state C-13 NMR and IR spectroscopy. Gel permeation chromatography analysis displayed weight average molecular weight in the range of 13.0-27.2 x 10(3) g/mol. The thus prepared copolymers revealed melting temperature in the range of 117-126 degrees C. Relatively reduced melting temperature compared to neat polyethylene may suggest an irregular arrangement of pendant functional group on polyethylene main chain.</p>
},
	keywords = {Hydrophilic polyethylene, insertion copolymerization, Isohexide mono-enes, Polyethylene, Sugar},
	issn = {0014-3057},
	doi = {10.1016/j.eurpolymj.2020.109775},
	author = {Rajput, Bhausaheb S. and Pawal, Sandip B. and Bodkhe, V. Dnyaneshwar and Rao, I. Nagamalleswara and Sainath, Annadanam V. Sesha and Chikkali, Samir H.}
}
