2002 journal article

Multiscale dewetting of low-molecular-weight block copolymer ultrathin films

MACROMOLECULAR RAPID COMMUNICATIONS, 23(3), 205–209.

By: D. Leonard n, P. Russell n, S. Smith* & R. Spontak* 

co-author countries: United States of America πŸ‡ΊπŸ‡Έ
author keywords: block copolymers; surface dewetting; surface patterns; thin films
Source: Web Of Science
Added: August 6, 2018

Ultrathin films of a low-molecular-weight block copolymer spontaneously dewet after several days at ambient temperature. Film rupture produces macroscopic holes and a residual pancake brush layer β‰ˆ 2 nm thick with intermittent mounds measuring up to 25 nm in thickness. Multiscale dewetting likewise occurs when the films are heated and returned to ambient temperature. Regardless of the surface pattern that forms during heating, submicron mounds develop on the dewetted copolymer film, and fine holes emerge along the substrate surface, after cooling.