A Modular Approach toward Functionalized Three-Dimensional Macromolecules: From Synthetic Concepts to Practical Applications
作者:Anton W. Bosman、Robert Vestberg、Andi Heumann、Jean M. J. Fréchet、Craig J. Hawker
DOI:10.1021/ja028392s
日期:2003.1.1
and polar vinylic repeat units. Functional groups can also be included along the backbone or as peripheral/chain end groups, thereby modulating the reactivity and polarity of defined portions of the stars. This modular approach to the synthesis of three-dimensional macromolecules permits the application of these tailored materials as multifunctional hosts for hydrogen bonding, nanoparticle formation
Interface Segregating Fluoralkyl-Modified Polymers for High-Fidelity Block Copolymer Nanoimprint Lithography
作者:Vincent S. D. Voet、Teresa E. Pick、Sang-Min Park、Manuel Moritz、Aaron T. Hammack、Jeffrey J. Urban、D. Frank Ogletree、Deirdre L. Olynick、Brett A. Helms
DOI:10.1021/ja1094292
日期:2011.3.9
Blockcopolymer (BCP) lithography is a powerful technique to write periodic arrays of nanoscale features into substrates at exceptionally high densities. In order to place these features at will on substrates, nanoimprint offers a deceptively clear path toward high throughput production: nanoimprint molds are reusable, promote graphoepitaxial alignment of BCP microdomains within their topography, and
Neutral layer polymers, methods of manufacture thereof and articles comprising the same
申请人:Dow Global Technologies LLC
公开号:US10167411B2
公开(公告)日:2019-01-01
Disclosed herein is a block copolymer comprising a first segment and a second segment that are covalently bonded to each other and that are chemically different from each other; where the first segment has a first surface free energy and where the second segment has a second surface free energy; and an additive copolymer; where the additive copolymer comprises a surface free energy reducing moiety where the surface free energy reducing moiety has a lower surface free energy than that of the first segment and the second segment; the additive copolymer further comprising one or more moieties having an affinity to the block copolymer; where the surface free energy reducing moiety is chemically different from the first segment and from the second segment; where the additive copolymer is not water miscible; and where the additive copolymer is not covalently bonded with the block copolymer.
Copolymer formulation for directed self assembly, methods of manufacture thereof and articles comprising the same
申请人:Rohm and Haas Electronic Materials LLC
公开号:US10294359B2
公开(公告)日:2019-05-21
Disclosed herein is a composition comprising a block copolymer; where the block copolymer comprises a first polymer and a second polymer; where the first polymer and the second polymer of the block copolymer are different from each other and the block copolymer forms a phase separated structure; an additive polymer comprising a polymer wherein the surface tension of the polymer with the first polymer and the surface tension of the polymer with the second polymer are both lower than the surface tension between the first polymer and second polymer; where the additive polymer comprises a reactive functional moiety that forms a bond or a complex or a coordinate with the substrate upon being disposed on the substrate; where the reactive functional moiety is unreacted when it is a part of the composition; and a solvent.
NEUTRAL LAYER POLYMERS, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME
申请人:Dow Global Technologies LLC
公开号:US20140378592A1
公开(公告)日:2014-12-25
Disclosed herein is a block copolymer comprising a first segment and a second segment that are covalently bonded to each other and that are chemically different from each other; where the first segment has a first surface free energy and where the second segment has a second surface free energy; and an additive copolymer; where the additive copolymer comprises a surface free energy reducing moiety where the surface free energy reducing moiety has a lower surface free energy than that of the first segment and the second segment; the additive copolymer further comprising one or more moieties having an affinity to the block copolymer; where the surface free energy reducing moiety is chemically different from the first segment and from the second segment; where the additive copolymer is not water miscible; and where the additive copolymer is not covalently bonded with the block copolymer.