Light-induced cross-linking and post-cross-linking modification of polyglycidol

Area of Science:

• Polymer Chemistry
• Photochemistry
• Materials Science

Background:

• Photoinduced radical generation is gaining attention for its cost-effectiveness and environmental benefits.
• Polyglycidol is a versatile polymer backbone for developing functional materials.

Purpose of the Study:

• To develop a light-induced cross-linking method for functional polyglycidol.
• To explore post-cross-linking modification of the cross-linked polymer.
• To characterize the properties of the modified polyglycidol.

Main Methods:

• Functionalization of linear polyglycidol with a tertiary amine (dimethylaminopropyl group).
• UV-light mediated cross-linking using camphorquinone as a type II photoinitiator.
• Post-cross-linking modification via quaternization with organoiodine compounds.
• Characterization using Dynamic Light Scattering (DLS), zeta potential measurements, Differential Scanning Calorimetry (DSC), and X-ray Photoelectron Spectroscopy (XPS).

Main Results:

• Successful light-induced cross-linking of dimethylaminopropyl functional polyglycidol was achieved.
• Post-cross-linking quaternization yielded modified polymers with altered properties.
• Aqueous dispersions exhibited measurable DLS and zeta potential values.
• Polymer films were analyzed using DSC and XPS, indicating successful modification.

Conclusions:

• A facile method for UV-light cross-linking of functional polyglycidol was established.
• The cross-linked polyglycidol can be further modified, expanding its application potential.
• The developed materials are suitable for aqueous applications and film formation.