Bio-Based Thermo-Reversible Aliphatic Polycarbonate Network

Abstract

Aliphatic polycarbonates represent an important class of materials with notable applications in the biomedical field. In this work, low Tg furan-functionalized bio-based aliphatic polycarbonates were cross-linked thanks to the Diels–Alder (DA) reaction with a bis-maleimide as the cross-linking agent. The thermo-reversible DA reaction allowed for the preparation of reversible cross-linked polycarbonate materials with tuneable properties as a function of the pendent furan content that was grafted on the polycarbonate backbone. The possibility to decrosslink the network around 70 °C could be an advantage for biomedical applications, despite the rather poor thermal stability of the furan-functionalized cross-linked polycarbonates.

Combined Analytical Approaches to Standardize and Characterize Biomaterials Formulations: Application to Chitosan-Gelatin Cross-Linked Hydrogels

“…We focused our attention on the signal at 862 cm –1 , attributed to C-H vibration of double bond in furan ring. The peak shows a decrease in intensity over the time during the reaction, meaning the formation of the Diels-Alder adduct and the consequent cross-linking [ 48 , 49 ].…”

Kinetic Study of the Diels–Alder Reaction between Maleimide and Furan-Containing Polystyrene Using Infrared Spectroscopy

“…Figure 2 compares the FTIR spectra of PSF, Ma, and PSF-Ma. The characteristic absorption peaks at 1777, 1712, 1379, and 1188 cm −1 [32,37], which emerge or increase in intensity, are representative of the PSF-Ma adduct.…”

Metal‐free terpolymerization of propylene oxide, carbon dioxide, and carbonyl sulfide: A facile route to sulfur‐containing polycarbonates with gradient sequences

“…Aliphatic polycarbonates are an important class of biodegradable polymeric materials extensively used in various applications such as in the biomedical field, packaging, and as polyols in the production of polyurethane. [1][2][3][4][5][6][7][8][9] Apart from the traditional synthetic method of diols and phosgene polycondensation, 10 aliphatic polycarbonates can be efficiently synthesized either by ring-opening polymerization (ROP) of cyclic carbonates 4,9,11 or by copolymerization of carbon dioxide (CO 2 ) and epoxides. 2,[12][13][14][15][16][17][18][19] Unfortunately, low refractive index restricted their applications in specific optical devices.…”