Push-pull acylo- phosphine oxides for two-photon induced polymerization
Rashid Nazir , Paulius Danilevicius , David Gray , Maria Farsari , Daniel T. Gryko
AbstractThe two-step method for the synthesis of acyl–phosphine oxides from aromatic aldehydes was optimized giving the products in 52–97% overall yield. Linear and nonlinear optical properties of series of acyl–phosphine oxides possessing substituents with different electron-donating ability were investigated. Two-photon absorption cross sections (σ2) of push–pull acyl–phosphine oxide was determined as 9GM via z-scan measurements with femtosecond laser pulses. Using acyl–phosphine oxides possessing dipolar structure as initiators, 3D nanopatterns were successfully fabricated by two-photon initiated polymerization. These compounds also initiate classical photopolymerization when excited with UV radiation.
|Journal series||Macromolecules, ISSN 0024-9297|
|Publication size in sheets||0.5|
|Score|| = 45.0, 28-11-2017, ArticleFromJournal|
= 45.0, 28-11-2017, ArticleFromJournal
|Publication indicators||: 2013 = 5.927 (2) - 2013=5.531 (5)|
|Citation count*||4 (2015-04-22)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.