Novel acrylonitrile-based copolymers containing phospholipid moieties: synthesis and characterization

Area of Science:

• Polymer Chemistry
• Biomaterials Science

Background:

• Acrylonitrile-based copolymers are widely used but often require enhanced biocompatibility for biomedical applications.
• Phospholipid moieties are known to improve the biocompatibility of materials by mimicking cell membrane structures.

Purpose of the Study:

• To synthesize novel acrylonitrile-based copolymers incorporating phospholipid moieties.
• To evaluate the impact of phospholipid incorporation on the surface properties and biocompatibility of these copolymers.

Main Methods:

• A three-step synthesis involving copolymerization of acrylonitrile and 2-hydroxyethyl methacrylate (HEMA), followed by reactions with 2-chloro-2-oxo-1,3,2-dioxaphospholane (COP) and trimethylamine.
• Characterization using FT-IR, 1H and 31P NMR, and XPS.
• Surface property evaluation via water contact angle, protein adsorption, and platelet adhesion tests.

Main Results:

• Successful synthesis of phospholipid-containing acrylonitrile-based copolymers (PLCANCP).
• Characterization confirmed the chemical structure and successful incorporation of phospholipid moieties.
• A significant decrease in water contact angle, bovine serum albumin adsorption, and platelet adhesion was observed with PLCANCP compared to parent polymers.

Conclusions:

• The introduction of phospholipid moieties effectively enhances the biocompatibility of acrylonitrile-based copolymers.
• PLCANCP demonstrates improved surface properties, indicating potential for use in biomedical devices and membranes.