チェーンシャットリングポリメリゼーションによるオレフィンブロックコポリマーの触媒的生産
Daniel J Arriola1, Edmund M Carnahan, Phillip D Hustad
1Dow Chemical Company, Building 1702, Midland, MI 48674, USA. djarriola@dow.com
Science (New York, N.Y.)
|May 6, 2006
まとめ
この研究は,オレフィンブロックコポリマーのための新しい触媒システムを導入し,優れた高温弾性のために,硬質と柔らかいセグメントを交互に変えて材料を作成します. これらの高度なポリマーは,継続的なプロセスを用いて効率的に生産されます.
科学分野:
- ポリマー化学のポリマー化学について
- マテリアルサイエンス 材料科学
- カタリシス カタリシス カタリシス
背景:
- 伝統的なオレフィンブロックコポリマーには,高温アプリケーションの調節性特性が欠けていることが多い.
- 高融点と低結晶温度の両方を備えた材料を開発することは,大変な課題です.
研究 の 目的:
- 明確な半結晶および無形セグメントを持つオレフィンブロックコポリマーを生産するための触媒システムを開発する.
- 高温下での弾性高性能の強化された材料を達成するために.
主な方法:
- チェーンシャットリング剤を使用して,ポリマーチェーンを1つの原子炉内の2つの異なる触媒間で転送しました.
- 異なるブロックにおけるアルファオレフィンとエチレンの比率を調整することによって制御されたコポリマー組成.
主要な成果:
- 半結晶と無形のセグメントを交互に持つオレフィンブロックコポリマーを成功裏に製造した.
- その結果生成されるコポリマーには,高い融解温度と低いガラス化過渡温度があります.
- 高温下での優れた弾性高性能を証明した.
結論:
- 開発された触媒システムは,高度なオレフィンブロックコポリマーを正確に合成することを可能にします.
- これらの材料は,高温アプリケーションで優れた性能を提供します.
- このプロセスは,経済的に有利で継続的な生産に適しています.
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