Phase transitions and structural formation of PEG-PCL-PEG copolymer in the processes of fused deposition 3D printing

3rd International Youth Scientific Forum with International Participation "New Materials"

Dunaev, A.^1 ; Mariyanac, A.^1 ; Mironov, A.^1 ; Mironova, O.^1 ; Popov, V.^1 ; Syachina, M.^1,2

Institute of Photonic Technologies, Federal Research Centre Crystallography and Photonics, RAS, Moscow, Russia^1

I.M. Sechenov First Moscow State Medical University, 8/2 Trubetskaya St., Moscow, Russia^2

关键词: 3-D printing;    Degree of crystallinity;    Equilibrium value;    Fused deposition modeling;    Structural formation;    Structural transformation;    Thermal field distribution;    Thermal history;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/347/1/012035/pdf
DOI  :  10.1088/1757-899X/347/1/012035

来源: IOP

【 摘 要 】

In present work the analysis of thermal field distribution and thermal analysis were used to study phase and structural transformations in the block copolymer of polycaprolactone and polyethylene glycol in the process of scaffolds fabrication for tissue engineering using fused deposition modeling. It was shown that the intact polymer has a noticeable thermal history and formed degree of crystallinity which is close to its equilibrium value, while the microstructure of the polymer stays unchanged.