Abstract
This project is dedicated to investigate the optimal fluence of laser produced X-rays for crosslinking in thin Polymethylmethacrylate (PMMA) films. These films were deposited at room temperature using Pulsed Laser Deposition (PLD) technique. These deposited films were then irradiated with various X-ray fluence (produced from Laser induced Plasma) ranging from 2.5 to 5.76 mJ-cm−2. X-ray Diffractometer, Optical microscope, hardness tester and UV-VIS spectroscopy techniques have been employed to characterize the films. The X-ray fluence 4.48 mJ-cm−2 comes out to be the optimal fluence for crosslinking that not only improved the crystallization of the films but also caused the generation of new phases. The surface exhibited larger fragments at this fluence. A sharp enhancement in hardness as well as in absorption in the UV–vis range have also been observed at this fluence. These cross linked PMMA films have their potential applications in biomedical, optoelectronic, lithography, coating, packing and medical field.
| Original language | English |
|---|---|
| Pages (from-to) | 202-209 |
| Number of pages | 8 |
| Journal | Progress in Organic Coatings |
| Volume | 111 |
| DOIs | |
| State | Published - Oct 2017 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2017 Elsevier B.V.
Keywords
- Irradiation
- PMMA
- Pulsed laser deposition
- X-rays fluence
- XRD
ASJC Scopus subject areas
- General Chemical Engineering
- Surfaces, Coatings and Films
- Organic Chemistry
- Materials Chemistry