Journal article
Lignin-Based Triple Shape Memory Polymers
Biomacromolecules, Vol.16(9), pp.2735-2742
09/14/2015
Handle:
https://hdl.handle.net/2376/104916
PMID: 26214041
Abstract
Lignin-based triple shape memory polymers comprised of both permanent covalent cross-links and physical cross-links have been synthesized. A mixing phase with poly(ester-amine) and poly(ester-amide) network having two distinct glass transitions was hot mixed with more structurally homogenized methanol soluble lignin fraction by one-pot, two-step method. Triple shape properties arise from the combined effect of the glass transition of polyester copolymers and lignin and the dissociation of self-complementary hydrogen bonding and cross-link density. The percentage of recovery in each stage was investigated and it was proved that the first recovery is related with lignin-poly(ester-amine) rich network and the second recovery stage is related with lignin-poly(ester-amide) rich network. The thermal and mechanical properties of the lignin-copolymer networks were also investigated using differential scanning calorimetry and dynamic mechanical analysis.
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Details
- Title
- Lignin-Based Triple Shape Memory Polymers
- Creators
- Gopakumar Sivasankarapillai - Renewable Materials Program, Department of Forest, Rangeland, and Fire Sciences, University of Idaho , Moscow, Idaho 83844-1132, United StatesHui Li - Renewable Materials Program, Department of Forest, Rangeland, and Fire Sciences, University of Idaho , Moscow, Idaho 83844-1132, United StatesArmando G McDonald - Renewable Materials Program, Department of Forest, Rangeland, and Fire Sciences, University of Idaho , Moscow, Idaho 83844-1132, United States
- Publication Details
- Biomacromolecules, Vol.16(9), pp.2735-2742
- Academic Unit
- Composite Materials and Engineering Center
- Publisher
- United States
- Identifiers
- 99900546860601842
- Language
- English
- Resource Type
- Journal article