Journal
POLYMER
Volume 144, Issue -, Pages 121-127Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2018.04.047
Keywords
Cellulose nanocrystals; Soybean oil; Surface-initiated atom transfer radical; polymerization (SI-ATRP); Epoxy resins; Shape memory polymers
Categories
Funding
- National Science Foundation [DMR-1252611, OIA-1655740]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1252611] Funding Source: National Science Foundation
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Shape-memory epoxy resins were synthesized using plant oils and cellulose nanocrystals (CNCs). Epoxidized soybean homopolymers (PESBMA) were grafted from CNCs using surface-initiated atom transfer radical polymerization (SI-ATRP). The polymer grafted CNCs were combined with P(ESBMA-co-SBMA) copolymer and cured using anhydride to prepare epoxy resins. Controlling weight fractions of CNCs and ratios of epoxide to anhydride provided tunability over mechanical and thermal properties. The grafted polymer nanocomposites were also compared to simple blends to confirm better properties of the grafted system. Thermo-and chemo-responsive shape memory properties were obtained for these materials. (C) 2018 Elsevier Ltd. All rights reserved.
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