Reactive blends derived from modified soybean oil and silicone

Chetan Tambe, John Kaufmann, Daniel Graiver, Ramani Narayan

Research output: Contribution to journalArticle

Abstract

Reactive blends prepared from methoxysilane terminated silicone polymers and silylated soybean oil are described and characterized. Although simple mixing of soy and silicones results in gross phase separation, homogeneous polymeric products are obtained by introducing reactive sites. These products can be used as protective coatings, additives to adhesives and new sealants. Exposure of the mixtures to moisture leads to hydrolysis of the methoxysilanes and subsequent condensation of the resulting silanols that yields stable siloxane linkages between the two immiscible phases. FTIR, TGA, and swell-gel analyses indicate effective formation of these siloxane crosslinks. Reactive blends containing less than 20% silylated oil appeared completely transparent but increasing the soy content decreased the optical transparency. SEM micrographs reveal the silicone polymer as the continuous phase with individual spherical silylated soy oil particles distributed in it. The properties of these reactive blends vary from high elongation elastomers to high modulus resins depending on the composition.

LanguageEnglish (US)
JournalJournal of Polymer Science, Part A: Polymer Chemistry
DOIs
StateAccepted/In press - 2016

Profile

Soybean oil
Soybean Oil
Silicones
Siloxanes
Polymers
Oils
Elastomers
Sealants
Protective coatings
Phase separation
Transparency
Elongation
Condensation
Hydrolysis
Adhesives
Moisture
Gels
Resins
Scanning electron microscopy
Chemical analysis

Keywords

  • Compatibilization
  • Miscibility
  • Morphology
  • Renewable resources
  • Silicones

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Organic Chemistry

Cite this

Reactive blends derived from modified soybean oil and silicone. / Tambe, Chetan; Kaufmann, John; Graiver, Daniel; Narayan, Ramani.

In: Journal of Polymer Science, Part A: Polymer Chemistry, 2016.

Research output: Contribution to journalArticle

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