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Title: Poly(cyclohexylethylene)-block-Poly(lactide) Oligomers for Ultrasmall Nanopatterning Using Atomic Layer Deposition

Journal Article · · ACS Applied Materials and Interfaces

Poly(cyclohexylethylene)-block-poly(lactide) (PCHE–PLA) block polymers were synthesized through a combination of anionic polymerization, heterogeneous catalytic hydrogenation and controlled ring-opening polymerization. Ordered thin films of PCHE–PLA with ultrasmall hexagonally packed cylinders oriented perpendicularly to the substrate surface were prepared by spin-coating and subsequent solvent vapor annealing for use in two distinct templating strategies. In one approach, selective hydrolytic degradation of the PLA domains generated nanoporous PCHE templates with an average pore diameter of 5 ± 1 nm corroborated by atomic force microscopy and grazing incidence small-angle X-ray scattering. Alternatively, sequential infiltration synthesis (SIS) was employed to deposit Al2O3 selectively into the PLA domains of PCHE–PLA thin films. A combination of argon ion milling and O2 reactive ion etching (RIE) enabled the replication of the Al2O3 nanoarray from the PCHE–PLA template on diverse substrates including silicon and gold with feature diameters less than 10 nm.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Science Foundation (NSF); National Institutes of Health (NIH); National Institute of General Medical Sciences (NIGMS); Northwestern University; E.I. DuPont de Nemours & Co.; The Dow Chemical Company; USDOE Office of Science (SC)
Grant/Contract Number:
DMR-1420013; DMR-1332208; 0960140; AC02-06CH11357
OSTI ID:
1351388
Journal Information:
ACS Applied Materials and Interfaces, Vol. 8, Issue 11; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

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Cited By (2)

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Figures / Tables (6)