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- Title
Fabrication of microstructured materials based on chitosan and D,L-lactide copolymers using laser-induced microstereolithography.
- Authors
Demina, T.; Bardakova, K.; Svidchenko, E.; Minaev, N.; Pudovkina, G.; Novikov, M.; Butnaru, D.; Surin, N.; Akopova, T.; Bagratashvili, V.; Zelenetskii, A.; Timashev, P.
- Abstract
The graft copolymers of chitosan and oligo(D,L-lactide) obtained by solid-phase synthesis have been used as the basis of photosensitive compositions for the fabrication of three-dimensional microstructures by laser-induced stereolithography. The electronic absorption spectra of the copolymers are close to the sum of the spectra of native chitosan and polylactide, which has been chosen as a model of grafted oligolactide chains. The fundamental absorption bands of the copolymers lie in a range to 500 nm, and their contribution to the absorption intensity of a photosensitive composition based on the copolymers at second harmonic laser frequency is insignificant. Depending on the macromolecular characteristics of the copolymers, the three-dimensional crosslinking of photosensitive compositions on their basis in the course of microstructuring occurs with different efficiency.
- Subjects
MICROSTRUCTURE; CHITOSAN; GRAFT copolymers; LACTIDES; STEREOLITHOGRAPHY; PHOTOSENSITIVE polyimides; SOLID-phase synthesis; ABSORPTION spectra
- Publication
High Energy Chemistry, 2016, Vol 50, Issue 5, p389
- ISSN
0018-1439
- Publication type
Article
- DOI
10.1134/S0018143916050088