Journal ArticleDOI
Phase separation of ultrathin polymer-blend films on patterned substrates
Alamgir Karim,Jack F. Douglas,Benjamin P. Lee,Sharon C. Glotzer,John A. Rogers,Rebecca J. Jackman,Eric J. Amis,George M. Whitesides +7 more
Reads0
Chats0
TLDR
This paper presents a meta-analyses of the response of the immune system to E. coli A. whitesides using a probabilistic approach and shows clear patterns in response to the presence of E. whiteside.Abstract:
The phase separation of ultrathin polymer-blend films of polystyrene and polybutadiene on microcontact printed alkanethiol patterns with hydrophobic and hydrophilic end groups $(\ensuremath{-}{\mathrm{CH}}_{3}$ and -COOH) is investigated by atomic force microscopy. Simulations suggest that the phase-separation morphology can be controlled through patterns that modulate the polymer-surface interaction, and this concept is verified experimentally. Length scale pattern control is found to be limited to a scale on the order of a few micrometers.read more
Citations
More filters
Journal ArticleDOI
Polymer brushes: surface-immobilized macromolecules
Bin Zhao,William J. Brittain +1 more
TL;DR: In this article, a review of recent literature on polymer brushes with an emphasis on linear polymer brushes attached to solid substrate surfaces is presented. The following topics are included: (i) theoretical and experimental studies of homopolymer brush structure; (ii) theoretical investigations of diblock copolymer brushes; (iii) preparation of hompolymer brushes by physisorption, grafting to and grafting from methods.
Journal ArticleDOI
Dynamics and stability of thin liquid films
Richard V. Craster,Omar Matar +1 more
TL;DR: The dynamics and stability of thin liquid films have fascinated scientists over many decades: the observations of regular wave patterns in film flows along a windowpane or along guttering, the patterning of dewetting droplets, and the fingering of viscous flows down a slope are all examples that are familiar in daily life.
Journal ArticleDOI
Wetting at polymer surfaces and interfaces
Mark Geoghegan,Georg Krausch +1 more
TL;DR: The authors review progress from the past few years in research into the influence of a boundary in polymer blends, concentrating largely on the wetting transition, and the growth of wetting layers, where they pay particular attention to blends in which hydrodynamic flow plays a dominant role.
Journal ArticleDOI
Phase-Separation-Induced Surface Patterns in Thin Polymer Blend Films
Alamgir Karim,T. M. Slawecki,Sanat K. Kumar,Jack F. Douglas,Sushil K. Satija,Charles C. Han,Thomas P. Russell,Yun Liu,René M. Overney,J. Sokolov,Miriam Rafailovich +10 more
TL;DR: In this article, the phase separation in a polymer blend film is examined using atomic force microscopy (AFM), neutron reflection (NR) and secondary ion mass spectroscopy (SIMS) techniques.
Journal ArticleDOI
Conjugated polymer blends: linking film morphology to performance of light emitting diodes and photodiodes
TL;DR: In this article, the formation and morphology of thin films of conjugated polymer blends, as well as modern microscopic and spectroscopic techniques to study them, were reviewed and linked to the electronic performance of electroluminescent and photovoltaic devices and discuss energy and charge transfer phenomena at the interfaces.
References
More filters
Journal Article
Phase transitions and critical phenomena
TL;DR: The examination of phase transitions and critical phenomena has dominated statistical physics for the latter half of this century as discussed by the authors, and beautiful experimental results have elucidated the singularities (critical behavior) that occur in phase transitions.