Biodegradable Thermoplastic Elastomers and Pressure Sensitive Adhesives
Glucose, a widely available and inexpensive sugar molecule derived from corn, can be modified to produce a new, sustainable polymer for use in thermoplastic elastomers (TPEs) and pressure sensitive adhesives (PSAs). In a simple two-step synthesis, the glucose-based monomer GATA (glucose-6-acrylate-1,2,3,4-tetraacetate) produces diblock and ABA triblock copolymers via Reversible Addition-Fragmentation Chain Transfer (RAFT) polymerization. The resulting polymer combines unique elastomeric segments with glassy segments that physically cross link, resulting in a new family of elastomeric materials. The polymer also exhibits excellent thermal and adhesion properties as well as serviceable tensile strength and elasticity.
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Today’s thermoplastic elastomers, used in a wide variety of applications, are typically derived from petroleum and are therefore not biodegradable. This technology uses bio-based and inexpensive materials to produce a new, sustainable polymer that could replace existing petroleum-based materials. This greener polymer also exhibits similar adhesion properties as petroleum-based PSAs.
BENEFITS AND FEATURES:
- Simple two-step synthesis
- Glucose derived starting materials
- Controlled polymerization
- Diblock and triblock copolymer synthesis
- Greener elastomeric materials; biodegradable
- Higher Tg glassy segment compared to styrene block copolymers commonly used in pressure sensitive adhesives
- Thermoplastic elastomers (TPEs)
- Pressure sensitive adhesives (PSAs)
- Biomedical use, wound care and transdermal applications
Phase of Development Proof of concept. Polymers synthesized and characterized.