Dynamics ofαandβprocesses in thin polymer films: Poly(vinyl acetate) and poly(methyl methacrylate)
نویسندگان
چکیده
منابع مشابه
Tribological performance of polymethyl methacrylate as an aviation polymer
Polymethyl methacrylate (PMMA) is one of the most popular synthetic polymers in aircraft windshields as an alternative to glass, due to its lightweight, high transparency and impact-resistant characteristics. The erosion behavior of PMMA is critical when used as an alternative to glass in an aircraft windshield. This paper presents experimental data on the effects of particle size, velocity and...
متن کاملDynamics and Pattern Formation in Thin Polymer Films
This article describes some recent research in the physics of thin polymer films. The work discussed is carried out in three groups studying experimental polymer physics at the University of Waterloo, the University of Guelph and at McMaster University. The research currently conducted in these groups spans a broad range of thin film polymer physics, ranging from dynamics to self-assembly to ph...
متن کاملProbing slow dynamics in supported thin polymer films.
We have used variable cooling rate ellipsometric measurements to probe the slow dynamics in thin supported polystyrene films. For the slowest cooling rates (approximately 1 K/min) the measured Tg values are reduced below the bulk value with the measured Tg of 341 K for a 6 nm film. As the cooling rate is increased the Tg reductions become smaller until at cooling rates >90 K/min there is only s...
متن کاملSurfactant and Plasticiser Segregation in Thin Polyvinyl Alcohol Films
The vertical depth distribution of individual additive components (cetyltrimethylammonium bromide (CTAB) and deuterated pentaethylene glycol monododecyl ether (d25-C12E5) and deuterated glycerol (d-glycerol) in PVA film have been isolated and explored by ion beam analysis techniques and neutron reflectometry. The additives display an unexpectedly rich variety of surface and interfacial behaviou...
متن کاملDewetting dynamics of stressed viscoelastic thin polymer films.
Ultrathin polymer films that are produced, e.g., by spin coating are believed to be stressed since polymers are "frozen in" into out-of-equilibrium configurations during this process. In the framework of a viscoelastic thin-film model, we study the effects of lateral residual stresses on the dewetting dynamics of the film. The temporal evolution of the height profiles and the velocity profiles ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review E
سال: 2001
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.64.051807