ダイナミック・コヴァレント・ポリ硫化物の構造制御されたリング開封ポリメリゼーション
Yun Liu1,2,3, Yuan Jia1,2,3, Qiong Wu2,3
1Joint Center for Energy Storage Research , Argonne National Laboratory , 9700 South Cass Avenue , Lemont , Illinois 60439 , United States.
Journal of the American Chemical Society
|October 12, 2019
まとめ
研究者らは,ポリ硫化物構造を制御するための新しいリング開封ポリメリゼーション方法を開発した. この戦略により,大型ポリマーの合成とモノメアのリサイクルが可能になり,材料の潜在能力を拡大します.
科学分野:
- ポリマー化学
- 材料科学
背景:
- ポリ硫化物は,調節可能な特性を有する動的共性ポリマーである.
- ポリマーアーキテクチャ (サイクリックと線形) の制御は,材料の性能にとって極めて重要です.
研究 の 目的:
- 環開きポリメリゼーションを用いたポリ・ジスルファイドの構造制御のための戦略を開発する.
- 大型ポリマーの合成を可能にし,モノメアのリサイクルを容易にする.
主な方法:
- アリルチオールイニシアターによるリング開封ポリメリゼーションを使用して,サイクルポリマーを好む.
- 線形ポリマー形成を促進するためにアルキルチオールイニシアターを使用します.
- モノマー回収のための触媒脱ポリメリゼーションを達成する.
主要な成果:
- 特定のチオルのイニシアターを選択することによって,ポリ (二酸化硫化物) 構造の制御が実証されています.
- 高分子量ポリマーが630kDaまで合成されている.
- モノマーリサイクルのための触媒脱ポリメリゼーションが成功しました.
結論:
- 開発された戦略は,ポリマーの幾何学と長さの正確な制御を提供します.
- この進歩は,ダイナミックな共性ポリマーにおける構造-特性関係のより良い特徴付けを可能にします.
- 材料科学におけるポリ硫化物の潜在的応用を拡大する.
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