Abstract
In this study, a new benzoin-based multi-arm star polymer was synthesized by using ATRP, and characterization was achieved by spectrophotometric and chromatographic methods. Obtained multiarm (Benzoin-PS)m-polyDVB star polymer was employed as a polymeric photoinitiator for polymerization of methacrylates and acrylates. Photophysical properties of this initiator were determined by fluorescence and phosphorescence measurements, the phosphorescence lifetime was calculated as 29 ms hence the lowest triplet state nature was n-π* character, and laser flash photolysis technique was additionally used to get more information about triplet state and triplet lifetime which was calculated as 1.34 ms. Photokinetics of difunctional acrylate such as HDDA was studied with a multi-arm (Benzoin-PS)m-polyDVB star polymeric initiator using Photo-DSC.
| Original language | English |
|---|---|
| Pages (from-to) | 2082-2093 |
| Number of pages | 12 |
| Journal | Journal of Polymer Science |
| Volume | 59 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 15 Sept 2021 |
Bibliographical note
Publisher Copyright:© 2021 Wiley Periodicals LLC.
Funding
The authors wish to thank TUBITAK, Yildiz Technical University Research Fund (Project number: 2011-01-02-DOP02), and for their financial support. Duygu Sevinc Esen thanks TUBITAK-BIDEB for financial support. The authors wish to thank TUBITAK, Yildiz Technical University Research Fund (Project number: 2011‐01‐02‐DOP02), and for their financial support. Duygu Sevinc Esen thanks TUBITAK‐BIDEB for financial support.
| Funders | Funder number |
|---|---|
| TUBITAK | |
| TUBITAK-BIDEB | |
| Yildiz Teknik Üniversitesi | 2011‐01‐02‐DOP02 |
Keywords
- benzoin
- free radical polymerization
- polymeric photoinitiator
- star polymer