One-pot one-step synthesis of a photo-cleavable cross-linker via Passerini reaction for fabrication of responsive polymeric particles


Deveci G. , Kahveci M. U.

POLYMER BULLETIN, cilt.76, ss.1471-1487, 2019 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 76 Konu: 3
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1007/s00289-018-2449-0
  • Dergi Adı: POLYMER BULLETIN
  • Sayfa Sayısı: ss.1471-1487

Özet

A new approach for the synthesis of a photo-cleavable cross-linker and preparation of light-responsive polymeric particles is proposed in the current work. A multicomponent reaction, Passerini reaction, is employed as a one-pot one-step synthetic approach for the preparation of the acrylate-based cross-linker (hexane-1,6-diylbis(azanediyl))bis(1-(2-nitrophenyl)-2-oxoethane-2,1-diyl) diacrylate) (PCDA). Briefly, Passerini reaction of 1,6-diisocyanohexane, 2-nitrobenzaldehyde and acrylic acid yields the photo-cleavable diacrylate with o-nitrobenzyl ester moieties. Subsequently, the cross-linker is successfully utilized in the preparation of poly(methyl methacrylate) microspheres and nanospheres via suspension and miniemulsion polymerization, respectively. Finally, light-induced degradations of the polymeric particles are conducted under UV light illumination (around 366nm). All compounds and products in each step are well characterized by FTIR, H-1-NMR, UV-Vis spectroscopy, light microscopy and SEM.