Synthesis of Granular Hydroxy-Functionalized Ultra-high-molecular-weight Polyethylene and Its Fiber Properties
Source abstract
Abstract
Granular hydroxyl-functionalized UHMWPE was successfully prepared through copolymerization of ethylene and 10-undecen-1-ol protected by tri-iso-butylaluminum using a titanium complex. [tBuNSiMe2(2,7-tBu2Flu)]TiMe2 was activated in hexane by silica-supported modified-methylaluminoxane. Without any additional pretreatments, the obtained polymer powders were transformed into fibers through a gel-spinning and heat drawing process. When compared to fibers generated from the equivalent unfunctionalized UHMWPE or the commercial HUMWPE, both creep resistance and hydrophilic properties were improved in the hydroxy-functionalized UHMWPE fibers without losing tensile strength.
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Research context
OpenAlex topics: Organometallic Complex Synthesis and Catalysis · Synthetic Organic Chemistry Methods · Orthopaedic implants and arthroplasty
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References (45)
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