@article {48759,
	title = {Polyethylene-grafted sheet-like silsesquioxane nanocomposites with unprecedented adhesion to polar substrates},
	journal = {ACS Applied Polymer Materials},
	volume = {5},
	year = {2023},
	month = {JUL},
	pages = {5972-5983},
	type = {Article},
	abstract = {<p>
	Polyethylene is a highly apolar polymer with very pooradhesionto most substrates, necessitating the use of tie layers. Therefore,the synthesis of functional polyethylene is a long-standing challengein catalytic ethylene polymerization. Here, we report the preparationof a nanocomposite comprising polyethylene covalently grafted ontosheet-like silsesquioxanes, with unprecedented adhesion to metal andglass. A norbornene-grafted, layered Mg-silsesquioxane is treatedwith Grubbs second-generation catalyst (G-II), and the identity ofcovalently tethered G-II is unambiguously ascertained. Covalentlytethered G-II catalyzes the ring opening metathesis polymerizationof cyclooctene to poly(cyclooctene). The resulting poly(cyclooctene)is catalytically hydrogenated to yield polyethylene. This polyethylenenanocomposite exhibited a bonding strength of the order of 100 MPaon stainless steel and aluminum, 10-fold higher than reported forengineered polyethylene copolymers. The nanocomposite exhibits anincrease in the polar component of surface energy, yet remains compatibleand cocrystallizes with a polyethylene matrix.</p>
},
	keywords = {adhesion, clay, Nanocomposite, Polyethylene, silsesquioxane},
	issn = {2637-6105},
	doi = {10.1021/acsapm.3c00649},
	author = {Sharma, Vivek and Paulbudhe, Uday and Bachhar, Nirmalya and Chikkali, Samir H. and Kumaraswamy, Guruswamy}
}
