Synthesis of Granular Hydroxy-Functionalized Ultra-high-molecular-weight Polyethylene and Its Fiber Properties

Haobo Yuan; Cong Long; Junrong Yu; Fuyou Ke; Takeshi Shiono; Zhengguo Cai

doi:10.1007/s42765-022-00136-9

Advanced Fiber Materials ›› 2022, Vol. 4 ›› Issue (4) : 786 -794. DOI: 10.1007/s42765-022-00136-9

Research Article

Synthesis of Granular Hydroxy-Functionalized Ultra-high-molecular-weight Polyethylene and Its Fiber Properties

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¹State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, People’s Republic of China

²Graduate School of Advanced Science and Engineering, Hiroshima University, Kagamiyama 1-4-1, 739-8527, Higashi-Hiroshima, Hiroshima, Japan

^c yjr@dhu.edu.cn

^e tshiono@hiroshima-u.ac.jp

^f caizg@dhu.edu.cn

Haobo Yuan

received his M. S. in Materials Engineering in Donghua University, China, in 2017, and his Ph.D. in Applied Chemistry in Hiroshima University, Japan, in 2021. He continued his research in the field of synthesis of polyolefins in Hiroshima University as an assistant professor in Professor Takeshi Shiono’s lab from 2021 to present.

Cong Long

received his M. S. in Materials Engineering in Donghua University, China, in 2019. His research focuses on the synthesis of functionalized polyolefins, and modification of high-performance fibers.

Junrong Yu

is currently a professor in the College of Materials Science and Engineering, Donghua University, China. From 2005 to 2006, she went to the Eindhoven University of Technology, Holland as a visiting scholar. Her main research is high performance fibers (UHMWPE fibers and aramid fibers), the synthesis of high-performance polymers and fiber modification.

Fuyou Ke

received his Ph. D. from Beijing University in 2010. He is currently an associate professor at the College of Materials Science and Engineering, Donghua University, China. His research interests include synthesis of functional hybrids and their modification on fibers and fabrics.

Takeshi Shiono

received his Ph. D. from Tokyo Institute of Technology in 1989. He started his academic career at the Chemical Resources Laboratory of Tokyo Institute of Technology as an assistant professor and was promoted to an associate professor in 1993. He was promoted to a full professor in Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University in 2004 and has been serving to date. He received the Award of the Society of Polymer Science, Japan, on “Functionalization of polyolefins using group 4 polymerization catalysts” in 2020. His research interests include design and application of coordination polymerization catalysis.

Zhengguo Cai

received his Ph.D. in Polymer Chemistry and Physics under the supervision of Professor Takeshi Shiono from the Hiroshima University, Japan, in 2007, and continued his research from 2007 to 2011 as an assistant professor in the same lab. From 2011, he joined the College of Materials Science and Engineering, Donghua University, China, as a professor. His research interests include transition metal catalyzed olefin polymerization, synthesis of functionalized polyolefins and their application.

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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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Haobo Yuan, Cong Long, Junrong Yu, Fuyou Ke, Takeshi Shiono, Zhengguo Cai. Synthesis of Granular Hydroxy-Functionalized Ultra-high-molecular-weight Polyethylene and Its Fiber Properties. Advanced Fiber Materials, 2022, 4(4): 786-794 DOI:10.1007/s42765-022-00136-9