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Title: Non-native three-dimensional block copolymer morphologies

Self-assembly is a powerful paradigm, wherein molecules spontaneously form ordered phases exhibiting well-defined nanoscale periodicity and shapes. However, the inherent energy-minimization aspect of self-assembly yields a very limited set of morphologies, such as lamellae or hexagonally packed cylinders. Here, we show how soft self-assembling materials—block copolymer thin films—can be manipulated to form a diverse library of previously unreported morphologies. In this iterative assembly process, each polymer layer acts as both a structural component of the final morphology and a template for directing the order of subsequent layers. Specifically, block copolymer films are immobilized on surfaces, and template successive layers through subtle surface topography. As a result, this strategy generates an enormous variety of three-dimensional morphologies that are absent in the native block copolymer phase diagram.
Authors:
 [1] ;  [1] ;  [1] ; ORCiD logo [1] ;  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-113659-2017-JA
Journal ID: ISSN 2041-1723; R&D Project: 16064; KC0403020
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; self-assembly; block copolymers; morphologies; Center for Functional Nanomaterials; nanoscale materials
OSTI Identifier:
1347375

Rahman, Atikur, Majewski, Pawel W., Doerk, Gregory, Black, Charles T., and Yager, Kevin G.. Non-native three-dimensional block copolymer morphologies. United States: N. p., Web. doi:10.1038/ncomms13988.
Rahman, Atikur, Majewski, Pawel W., Doerk, Gregory, Black, Charles T., & Yager, Kevin G.. Non-native three-dimensional block copolymer morphologies. United States. doi:10.1038/ncomms13988.
Rahman, Atikur, Majewski, Pawel W., Doerk, Gregory, Black, Charles T., and Yager, Kevin G.. 2016. "Non-native three-dimensional block copolymer morphologies". United States. doi:10.1038/ncomms13988. https://www.osti.gov/servlets/purl/1347375.
@article{osti_1347375,
title = {Non-native three-dimensional block copolymer morphologies},
author = {Rahman, Atikur and Majewski, Pawel W. and Doerk, Gregory and Black, Charles T. and Yager, Kevin G.},
abstractNote = {Self-assembly is a powerful paradigm, wherein molecules spontaneously form ordered phases exhibiting well-defined nanoscale periodicity and shapes. However, the inherent energy-minimization aspect of self-assembly yields a very limited set of morphologies, such as lamellae or hexagonally packed cylinders. Here, we show how soft self-assembling materials—block copolymer thin films—can be manipulated to form a diverse library of previously unreported morphologies. In this iterative assembly process, each polymer layer acts as both a structural component of the final morphology and a template for directing the order of subsequent layers. Specifically, block copolymer films are immobilized on surfaces, and template successive layers through subtle surface topography. As a result, this strategy generates an enormous variety of three-dimensional morphologies that are absent in the native block copolymer phase diagram.},
doi = {10.1038/ncomms13988},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {12}
}