fulltext.study @t Gmail

New polyacrylates with photosensitive triazene groups designed for laser ablation: Synthesis, structure and properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
27734 44039 2008 9 PDF Available
Title
New polyacrylates with photosensitive triazene groups designed for laser ablation: Synthesis, structure and properties
Abstract

Two new triazene monomers, such as (1-(para methoxy-phenyl)-3-(2 acryloyloxyethyl)-3-methyl triazene-1, M1) and (1-(para chloro-phenyl)-3-(2 acryloyloxyethyl)-3-methyl triazene-1, M2) were synthesized and further employed as reaction partners with methyl methacrylate (MMA) in order to investigate the substituent effect of the triazene moiety on the polymeric properties. The synthesized monomers and polymers (PA1, molar fraction of M1 = 0.16; PA2, molar fraction of M2 = 0.11) were characterized by analytical and spectroscopic methods, while the surface morphology of polymers was visualized by atomic force microscopy (AFM) and optical microscopy. The photosensitivity of these copolymers was evaluated upon UV exposure, in solution and in film state, following the decreasing value of the π–π* absorption band corresponding to the triazene group centered at 290 nm and 320 nm. For both copolymers, the kinetic data indicated a first-order photoprocess, as evidenced from the determined constant rate in film state (PA1, k = 2.3 × 10−3 s−1; PA2, k = 2.7 × 10−4 s−1). Moreover, the ablation characteristics achieved at low fluence for an irradiation wavelength of 308 nm, quality structuring with no any debris and the absence of carbonization of the irradiated areas suggest that such photolabile polyacrylates could offer new possibilities in printing techniques and nanostructures on surfaces. In addition, the triazene functions introduced as side groups may be used for the tailoring of special polymeric architectures.

Keywords
Photosensitive; Triazene; Polyacrylates; UV/laser ablation; Copolymers
First Page Preview
New polyacrylates with photosensitive triazene groups designed for laser ablation: Synthesis, structure and properties
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 195, Issues 2–3, 15 April 2008, Pages 337–345
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us