東北大学 · 環境科学
Qian Li教授の研究室では、ポリビニリデンフラーロイド（PVDF）を基盤とした膜材料の開発に注力しています。特に、膜の親水性と分離性能を向上させるための表面修飾技術や、多様な溶媒系とポリマーの組み合わせによる膜構造制御を実践しています。ATRPを用いたジアミン修飾やゾイオン性モノマーのグラフト重合により、耐汚染性に優れた高性能な膜を創出しています。
Figures are computed from collected data and may differ slightly.
Abstract Polyvinylidene fluoride (PVDF) microporous flat membranes were cast with different kinds of PVDFs and four mixed solvents [trimethyl phosphate (TMP)– N,N ‐dimethylacetamide (DMAc), triethyl phosphate (TEP)–DMAc, tricresyl phosphate (TCP)–DMAc, and tri‐ n ‐butyl phosphate (TBP)–DMAc]. The effects of different commercial PVDFs (Solef® 1015, FR 904, Kynar 761, Kynar 741, Kynar 2801) on membrane morphologies and membrane performances of PVDF/TEP–DMAc/PEG200 system were investigated. The mem
Abstract Two sulfobetaine‐based zwitterionic monomers, including 3‐(methacryloylamino) propyl‐dimethyl‐(3‐sulfopropyl) ammonium hydroxide (MPDSAH) and 2‐(methacryloyloxyethyl) ethyl‐dimethyl‐(3‐sulfopropyl) ammonium (MEDSA) were successfully grafted from poly(vinylidene fluoride) (PVDF) hollow fiber membrane outside surface via chemical activation and atom transfer radical polymerization (ATRP). The ATRP time at 2 h under the 2 mol/L of zwitterionic monomers was the minimum period for the comple
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