Obituary

Ereaux, L. P.; Craig, Gibson E.

doi:10.1111/j.1365-2133.1967.tb11429.x

Cited by 2 publications

(1 citation statement)

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“…Because internal epoxides are much less reactive than external epoxides in most epoxy curing reactions, the roles currently assigned to epoxidized triglyceride oils are limited to uses such as stabilizers and plasticizers for halogen-containing polymers − and reactive toughening agents for rigid thermoset plastics (i.e., phenolic resins) . Recently, Cádiz et al prepared a biobased external epoxy using 10-undecenoic acid and successfully managed the epoxy-amine curing. , However, whereas 10-undecylenic acid is a derivative of naturally occurring castor oil, it is mainly used in pharmaceuticals and cosmetics and may not be suitable for the large-scale production of resins. Therefore, end users are still seeking an economical biobased epoxy having internal epoxides that can be competitive with petroleum-based epoxies having external epoxides.…”

Section: Introductionmentioning

confidence: 99%

High Biobased Content Epoxy–Anhydride Thermosets from Epoxidized Sucrose Esters of Fatty Acids

2011

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Novel highly functional biobased epoxy compounds, epoxidized sucrose esters of fatty acids (ESEFAs), were cross-linked with a liquid cycloaliphatic anhydride to prepare polyester thermosets. The degree of cure or conversion was studied using differential scanning calorimetry (DSC), and the sol content of the thermosets was determined using solvent extraction. The mechanical properties were studied using tensile testing to determine Young's modulus, tensile stress, and elongation at break. Dynamic mechanical analysis (DMA) was used to determine glass-transition temperature, storage modulus, and cross-link density. The nanomechanical properties of the surfaces were studied using nanoindentation to determine reduced modulus and indentation hardness. The properties of coatings on steel substrates were studied to determine coating hardness, adhesion, solvent resistance, and mechanical durability. Compared with the control, epoxidized soybean oil, the anhydride-cured ESEFAs have high modulus and are hard and ductile, high-performance thermoset materials while maintaining a high biobased content (71-77% in theory). The exceptional performance of the ESEFAs is attributed to the unique structure of these macromolecules: well-defined compact structures with high epoxide functionality. These biobased thermosets have potential uses in applications such as composites, adhesives, and coatings.

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Section: Introductionmentioning

confidence: 99%

High Biobased Content Epoxy–Anhydride Thermosets from Epoxidized Sucrose Esters of Fatty Acids

2011

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Bibliography of Secondary Sources on the History of Dermatology

Parish¹

1975

Arch Dermatol

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Part of the Dermatology Commons This Article is brought to you for free and open access by the Jefferson Digital Commons. The Jefferson Digital Commons is a service of Thomas Jefferson University's Center for Teaching and Learning (CTL). The Commons is a showcase for Jefferson books and journals, peer-reviewed scholarly publications, unique historical collections from the University archives, and teaching tools. The Jefferson Digital Commons allows researchers and interested readers anywhere in the world to learn about and keep up to date with Jefferson scholarship. This article has been accepted for inclusion in Department of Dermatology and Cutaneous Biology Faculty Papers by an authorized administrator of the Jefferson Digital Commons.

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Obituary

Cited by 2 publications

References 0 publications

High Biobased Content Epoxy–Anhydride Thermosets from Epoxidized Sucrose Esters of Fatty Acids

High Biobased Content Epoxy–Anhydride Thermosets from Epoxidized Sucrose Esters of Fatty Acids

Bibliography of Secondary Sources on the History of Dermatology

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