Photoresponsive Polymer Films with Directly Micropatternable Surfaces Based on the Change in Free Volume by Photo‐Crosslinking

2022 ◽  
pp. 2101965
Author(s):  
Takafumi Noguchi ◽  
Nobuhiro Akioka ◽  
Yuri Kojima ◽  
Akifumi Kawamura ◽  
Takashi Miyata
Keyword(s):  
Free Volume ◽  
Polymer Films

Free volume model for dielectric constant of polymer films

1994 ◽  
Author(s):  
Abe Eftekhari ◽  
Anne St. Clair ◽  
Diane M. Stockly ◽  
Danny R. Sprinkle ◽  
Jag J. Singh
Keyword(s):  
Dielectric Constant ◽  
Free Volume ◽  
Polymer Films ◽  
Volume Model ◽  
Free Volume Model

scholarly journals Development of moisture-proof polydimethylsiloxane/aluminum oxide film and stability improvement of perovskite solar cells using the film

RSC Advances ◽  
2019 ◽  
Vol 9 (21) ◽  
pp. 11737-11744 ◽  
Author(s):  
Eun Young Choi ◽  
Ju-Hee Kim ◽  
Bu-Jong Kim ◽  
Ji Hun Jang ◽  
Jincheol Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Oxide Film ◽  
Aluminum Oxide ◽  
Free Volume ◽  
Polymer Films ◽  
Perovskite Solar Cells ◽  
Barrier Property ◽  
Moisture Barrier ◽  
Aluminum Oxide Film ◽  
Moisture Barrier Property

A method for enhancing the moisture barrier property of polydimethylsiloxane (PDMS) polymer films is proposed. This is achieved by filling the PDMS free volume with aluminum oxide (AlOx).

Gum arabic helps prepare better lacey polymer films for specimen support in electron microscopy

1993 ◽  
Vol 51 ◽  
pp. 240-241
Author(s):  
Shailesh R. Sheth ◽  
Jayesh R. Bellare
Keyword(s):  
Electron Microscopy ◽  
Polymer Films ◽  
Gum Arabic ◽  
Complete Removal ◽  
Ammonium Bromide ◽  
Release Agent ◽  
Astigmatism Correction ◽  
Long Time ◽  
Micro Holes ◽  
Cetyl Trimethyl Ammonium

Specimen support and astigmatism correction in Electron Microscopy are at least two areas in which lacey polymer films find extensive applications. Although their preparation has been studied for a very long time, present techniques still suffer from incomplete release of the film from its substrate and presence of a large number of pseudo holes in the film. Our method ensures complete removal of the entire lacey film from the substrate and fewer pseudo holes by pre-treating the substrate with Gum Arabic, which acts as a film release agent.The method is based on the classical condensation technique for preparing lacey films which is essentially deposition of minute water or ice droplets on the substrate and laying the polymer film over it, so that micro holes are formed corresponding to the droplets. A microscope glass slide (the substrate) is immersed in 2.0% (w/v) aq. CTAB (cetyl trimethyl ammonium bromide)-0.22% (w/v) aq.

Sign in / Sign up

Export Citation Format

Share Document