Master of Science (MS)
First Committee Member
Number of Pages
Polyolefin is the most widely used commercial polymer in the world. Currently, approximately 60% of total volume of polymer production is based on polyolefin materials because of their good mechanical, chemical properties, as well as low production cost. However, poor compatibility with polar materials (metals, ceramics, and polar polymers) remains a problem that limits further application of this indispensable material. Introduction of the polar group into the polyolefin has been suggested as the best way to overcome this drawback. However, the inherent inertness of polyolefin has made the introducing polar group difficult. Although free radical modification of commercial polyolefin, copolymerization with protected polar vinyl monomer and subsequent deprotection, and copolymerization using oxophilic late transition metal have been adopted to introduce polar groups on polyolefins, these methods still displayed serious shortcomings in terms of controlling polymer structures, molecular weights, and concentrations of polar groups; We report a novel approach that allows us to introduce polar groups into a commercial polyolefin, isotactic poly(1-butene), while maintaining original properties of the polymer: regioselective rhodium catalyzed C-H borylation of side chains of poly(1-butene) and the subsequent oxidation of the boronic ester to hydroxyl group. (Abstract shortened by UMI.).
Activation Catalyzed; Controlled; Copolymers; Functionalized; Graft Metal; Polymerization; Polyolefin; Radical; Transition
Polymers; Polymerization; Chemistry; Organic chemistry
University of Nevada, Las Vegas
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Chung, Hoyong, "Functionalized polyolefin graft copolymers via transition metal-catalyzed C--H activation and controlled radical polymerization" (2005). UNLV Retrospective Theses & Dissertations. 1933.