UV-Blocking, Transparent, and Antioxidant Polycyanoacrylate Films

Area of Science:

• Materials Science
• Polymer Chemistry
• Biomaterials

Background:

• Cyanoacrylate monomers are primarily used in adhesives and forensics due to rapid polymerization.
• Their rigid nature limits broader applications, despite biocompatibility and biodegradability.
• Developing transparent cyanoacrylate films can unlock new uses in medicine and packaging.

Purpose of the Study:

• To create transparent cyanoacrylate films with improved ductility and functionality.
• To explore the potential of poly(propylene carbonate) and caffeic acid as additives.
• To evaluate the antioxidant, UV-absorbing, and barrier properties of the developed films.

Main Methods:

• Transparent cyanoacrylate films were prepared using solvent casting with cyclopentanone.
• Poly(propylene carbonate) (PPC) was incorporated (up to 5 wt.%) to enhance ductility.
• Caffeic acid (up to 2 wt.%) was added for antioxidant and UV-absorbing functionalities.

Main Results:

• The films maintained transparency with added PPC and caffeic acid.
• Films demonstrated significant antioxidant activity, achieving 100% radical inhibition within 2 hours.
• Excellent UV-blocking properties were observed, with zero transmittance in UVC and UVB ranges.
• Films exhibited superior water vapor and oxygen barrier properties compared to low-density polyethylene (LDPE).

Conclusions:

• Transparent, ductile, and functionalized cyanoacrylate films were successfully developed.
• These films possess promising antioxidant, UV-blocking, and barrier properties.
• Potential applications include food preservation, sun screening, and biomedical uses.