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Updated: Jan 8, 2026
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Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
Published on: December 16, 2022
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Construction of Robust Cross-Linked Polymer Shells in Interfacial Photocycloaddition Polymerization: Trifunctional vs
Misato Yamashita1, Yukiya Kitayama1, Atsushi Harada1
1Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan.
Langmuir : the ACS Journal of Surfaces and Colloids
|December 18, 2025
Summary
Adding a single photoreactive group to monomers significantly enhances interfacial photocycloaddition polymerization (IPCP) for creating degradable polymer capsules. Tetrafunctional monomers yield robust shells faster than trifunctional ones.
Area of Science:
- Polymer Chemistry
- Materials Science
Background:
- Interfacial photocycloaddition polymerization (IPCP) is an effective method for synthesizing degradable polymer capsules.
- This process involves photocycloaddition of multifunctional photoreactive monomers at the particle interface.
Purpose of the Study:
- To investigate the influence of the number of photoreactive groups on monomer species in IPCP.
- To compare the formation of cross-linked polymer shells using tri- and tetrafunctional monomers.
Main Methods:
- Utilized interfacial photocycloaddition polymerization (IPCP).
- Employed tri- and tetrafunctional monomers with varying photoreactive groups.
- Analyzed the rate of cross-linked polymer shell formation and capsule properties.
Main Results:
- Tetrafunctional monomers accelerated robust capsule shell development compared to trifunctional monomers.
- Hollow polymer particles impermeable to low-molecular-weight compounds were formed faster with tetrafunctional monomers (6 h) than trifunctional (20 h).
- Comparable conversions of photoreactive groups were observed for both monomer types.
Conclusions:
- Increasing photoreactive groups per monomer markedly enhances IPCP efficiency for robust shell construction.
- The number of photoreactive groups is a critical factor in controlling polymer shell properties and synthesis time.
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