fulltext.study @t Gmail

Synthesis of the end-functionalized polymethyl methacrylate incorporated with an asymmetrical porphyrin group via atom transfer radical polymerization and investigation on the third-order nonlinear optical properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
26816 43980 2013 8 PDF Available
Title
Synthesis of the end-functionalized polymethyl methacrylate incorporated with an asymmetrical porphyrin group via atom transfer radical polymerization and investigation on the third-order nonlinear optical properties
Abstract

•We synthesized a new linear PMMA with the end group of the asymmetrical porphyrin via atom transfer radical polymerization.•The third-order nonlinear optical properties of polymers were investigated by using Z-scan technique.•The obtained polymers have large nonlinear optical limiting properties, could serve as a potential candidate for the optical limiting applications in the laser protection field.

A novel asymmetrical zinc(II) porphyrin (ZnPor-Br) was synthesized as the initiator for the atom transfer radical polymerization (ATRP). Using CuBr/2,2′-dipyridyl as the catalyst system, the ATRP of polymethyl methacrylate (PMMA) was carried out to afford a new linear PMMA with the end group of the asymmetrical porphyrin (ZnPor-PMMA). The structures of the porphyrin, ZnPor-Br and as-prepared polymer were determined by FT-IR, 1H NMR spectra and further confirmed by element analysis. Polydispersity index (PDI) obtaining from the gel permeation chromatograph (GPC) indicated that the molecular weight distribution was narrow, and the whole process of polymerization was well controlled. The third-order nonlinear optical properties of polymers were investigated by using Z-scan technique in the pico-second time scale. The nonlinear refracting index (n2) and the third-order nonlinear polarizability [χ(3)] were 4.1 × 10−10 esu and 1.64 × 10−10 esu respectively, while the molecular polarizability (γ′) was 1.01 × 10−28 esu (Mn = 2000). The obtained results implied that the prepared compound featured the large nonlinear optical limiting properties and could serve as a potential candidate for the reverse saturable absorption (RSA) and the refractive-based optical limiting applications in the laser protection field.

Keywords
Atom transfer radical polymerization; Zincporphyrin; Z-scan; Optical limiting
First Page Preview
Synthesis of the end-functionalized polymethyl methacrylate incorporated with an asymmetrical porphyrin group via atom transfer radical polymerization and investigation on the third-order nonlinear optical 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 272, 15 November 2013, Pages 65–72
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