Journal
MACROMOLECULES
Volume 46, Issue 18, Pages 7239-7244Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma4010988
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Funding
- European Community's Seventh Framework Marie Curie ITN program TopBio [PITN-GA-2010-264362]
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The 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 (sigma(2)) 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.
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