20206-08-19 千葉大学
図：本研究概要
＜関連情報＞
- https://www.chiba-u.ac.jp/news/research-collab/post_708.html
- https://www.nature.com/articles/s41598-026-63638-1
プラスチックから肥料へ：イソソルビドをモノマー、可塑剤、肥料として用いるポリマーシステム Plastics to fertilizer: A polymer system based on isosorbide as a monomer, plasticizer, and fertilizer
Shunsuke Fujimata,Yoshiki Tokonami,Raj Kishan Agrahari,Toyokazu Tsutsuba,Kazuaki Rikiyama,Norio Tomotsu,Tatsuo Taniguchi,Takehiro Kamiya,Mizuhiko Nishida & Daisuke Aoki
Scientific Reports Published:18 August 2026
DOI:https://doi.org/10.1038/s41598-026-63638-1
Abstract
Plastics have long been designed as durable materials with limited consideration of their fate after use. In contrast, a polymer system that enables end-of-life plastics to no longer to be discarded but instead to be transformed into fertilizers that actively benefit ecosystems, would be very desirable indeed. Such a concept may offer a new direction for polymer design and expand the potential roles of plastic materials. In our previous studies, we demonstrated that isosorbide-based polycarbonates (PIC) can be converted into fertilizer-compatible components through ammonolysis after use. Building on this concept, the present study introduces dual-functional isosorbide-based plasticizers that simultaneously reduce the brittleness of PIC while also being convertible into fertilizer-compatible components through ammonolysis after use. The effectiveness of the degradation products obtained from this plastic system, composed of PIC and isosorbide-based plasticizers, as fertilizers was validated through the growth of both a model plant and an edible vegetable.
