Charge Density Gradients of Polymer Thin Film by Gaseous Phase Quaternization
نویسندگان
چکیده
منابع مشابه
Low-density polymer thin film formation in supercritical carbon dioxide
We report a method for producing stable low-density polymer films by using supercritical carbon dioxide (scCO2). Two different molecular weight polystyrene films with various thicknesses were exposed to scCO2 along the density fluctuation ridge in P – T phase diagram. The swollen structures could be then frozen by flash evaporation of CO2 without forming additional voids. X-ray reflectivity dat...
متن کاملStability of an Evaporating Thin Polymer Film
Mesoscopic patterns have been observed to form in thin polymer films undergoing a fast dip-coating process. Though several mechanisms for creating of mesoscopic patterns have been proposed, the mechanism of the evaporation-induced mesoscopic self-organization is not yet fully understood. The paper aims to explain this phenomenon by studying the stability of a thin evaporating film. The analysis...
متن کاملCharge Transport in Conducting Polymer Film Electrodes
A polymer film electrode can be defined as an electrochemical system in which at least three phases are contacted successively in such a way that between a first-order conductor (usually a metal) and a second-order conductor (usually an electrolyte solution) is an electrochemically active polymer layer. The polymer layer is more or less stably attached to the metal, mainly by adsorption (adhesi...
متن کاملOrganic polymer thin-film photo-transistors
We have investigated the effects of illumination, both broadband and monochromatic, on the electrical performance of organic polymer thin-film transistors (OP-TFTs). In each case, providing the illumination is sufficiently absorbed by the organic polymer, the drain current of a device biased in the OFF-state is significantly increased. We have observed increases in the OFF-state drain current a...
متن کاملSegregation and Stability in Ultra - Thin Film Polymer - Polymer
Dedication To Mr. Albin and Mr. Miller for recognizing that a student is not a vessel to be filled, but a fire to be lit.
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: ACS Macro Letters
سال: 2020
ISSN: 2161-1653,2161-1653
DOI: 10.1021/acsmacrolett.9b00930