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Thermo-Responsive Shape-Memory Dual-Cured Polymers Based on Vegetable Oils.

Rokas Petrauskas1, Sigita Grauzeliene1, Jolita Ostrauskaite1

  • 1Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania.

Materials (Basel, Switzerland)
|January 11, 2024
PubMed
Summary
This summary is machine-generated.

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Researchers developed novel thermo-responsive shape-memory polymers from vegetable oils using a dual-curing method. These sustainable polymers exhibit excellent shape recovery, offering potential for advanced applications.

Area of Science:

  • Polymer Science
  • Materials Science
  • Sustainable Chemistry

Background:

  • Thermo-responsive shape-memory polymers (SMPs) offer reversible deformation capabilities triggered by temperature fluctuations.
  • Vegetable oils present a sustainable, biorenewable feedstock for polymer synthesis.
  • Developing SMPs from renewable resources is crucial for environmentally conscious material innovation.

Purpose of the Study:

  • To synthesize novel thermo-responsive SMPs utilizing vegetable oils as a primary component.
  • To employ a dual-curing technique to achieve tailorable polymer properties.
  • To investigate the potential of vegetable oil-based polymers for shape-memory applications.

Main Methods:

  • Synthesis of polymers using acrylated epoxidized soybean oil, epoxidized linseed oil, and epoxidized camelina oil.
Keywords:
camelina oilclick reactionsdual curinglinseed oilshape memorysoybean oil

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  • Application of a dual-curing technique involving radical photopolymerization and thermal cationic polymerization with m-xylylenediamine.
  • Rheological analysis to study curing kinetics under different polymerization conditions.
  • Evaluation of mechanical and thermal properties of the synthesized polymers.

    • Main Results:

    • The dual-curing process significantly enhanced the rheological, mechanical, and thermal properties of the polymers.
    • Vegetable oil-based polymers demonstrated excellent shape-memory properties with a 100% recovery ratio.
    • The curing kinetics were effectively analyzed for radical photopolymerization, thermal cationic polymerization, and dual-curing systems.

    Conclusions:

    • Dual-curing is an effective strategy for enhancing the properties of vegetable oil-based SMPs.
    • The synthesized polymers exhibit high shape recovery, indicating their suitability for advanced applications.
    • This research highlights the potential of using biorenewable vegetable oils for creating high-performance shape-memory materials.