Synthesis of Long‐Chain Polyamides via Main‐Chain Modification of Polyethyleneketones
Yipu Lu, Kohei Takahashi, Jian Zhou, Roopsung Nontarin, Shintaro Nakagawa, Naoko Yoshie, Kyoko Nozaki
Abstract
Long-chain polyamides (polyethyleneamides) were prepared from polyethylenes bearing in-chain carbonyl groups (polyethyleneketones) by the oxime formation and successive Beckmann rearrangement. (Diethylamino)sulfur trifluoride (DAST) was utilized as a promoter, which allowed mild conversion of the oxime group in spite of low solubility of the polymers. The polyethyleneamide exhibited different tensile property compared to a commercial HDPE.
Topics & Concepts
Chain (unit)PolyamidePolymer scienceMaterials sciencePolymer chemistryPhysicsAstronomybiodegradable polymer synthesis and propertiesSynthesis and properties of polymersAdvanced Polymer Synthesis and Characterization