Back to Search
Start Over
Photo masking via breaking alkyl C[sbnd]Se bond of selenium-containing maleimide polymers by ultraviolet light.
- Source :
-
European Polymer Journal . Oct2021, Vol. 159, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- [Display omitted] • Obtained polymer with alkyl C Se bond has similar transparency with polystyrene (PS), higher the refractive index than PS and comparable thermostability with PS. • The pattern is directly visual under natural light without any extra treatments and the reaction condition of photo-corsslinking does not require photoacid, photoinitiator and other agents. • The obtained pattern has excellent solution resistance, duo to its cross-linked structure. • The pattern keeps a smooth surface without deformation, which avoides its distortion. To investigate the complexity of breaking aryl C Se bond, alkyl C Se bond and alkyl C S bond by ultraviolet light, three maleimide polymers are employed as objects, including SePhP which reported in our previous work having aryl C Se bond, SePP which synthesized via radical copolymerization of N -(4-selenophenyl)-propyl maleimide and styrene having alkyl C Se bond and SPP which synthesized via radical copolymerization of N -(4-thiophenyl)-propyl maleimide and styrene having alkyl C S bond. After careful structure characteristics, SePhP, SePP and SPP are treated by ultraviolet light, as a result, only C Se bond of SePP can be broken. When SePP is irradiated by ultraviolet light in an oxygen-free condition, it can make a structure change from linear to cross-linked and refractive index decrease of polymer. Furthermore, utilizing photo-crosslinking and changing of refractive index of SePP after ultraviolet light irradiation, we realize visual photomask patterning in a simple system, which will bring great potential in display devices, anti-counterfeit labels, and etc. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00143057
- Volume :
- 159
- Database :
- Academic Search Index
- Journal :
- European Polymer Journal
- Publication Type :
- Academic Journal
- Accession number :
- 152712059
- Full Text :
- https://doi.org/10.1016/j.eurpolymj.2021.110764