,

Harry D Rowland1, William P King, John B Pethica

  • 1Department of Mechanical Science and Engineering, University of Illinois, Urbana, IL 61801, USA.

Science (New York, N.Y.)
|October 4, 2008
PubMed
まとめ

ポリマーを薄膜に閉じ込めると,変形に対する耐性が著しく低下し,典型的な粘度行動さえ逆転します. この発見は,ナノインプリント製造と潤滑剤の性能に影響を与えます.

関連する概念動画

Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...