Properties of Thermosets Derived from Chemically Modified Triglycerides and Bio-Based Comonomers

Applied Sciences

Evan S. Beach²  Zheng Cui²  Paul T. Anastas²  Mingjiang Zhan¹ 

[1] Center for Composite Materials and Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716-3144, USA; E-Mail:;Center for Green Chemistry and Green Engineering, Yale University, 225 Prospect St, New Haven, CT 06520-8107, USA; E-Mails:

关键词: thermoset;    polymer;    bio-based;    green chemistry;   

DOI  :  10.3390/app3040684

来源: mdpi

【 摘 要 】

A series of materials was prepared by curing acrylated epoxidized soybean oil (AESO) and dibutyl itaconate (DBI) or ethyl cinnamate (EC) comonomers to provide examples of thermosets with a high proportion of bio-based carbon, in accordance with the principles of green chemistry. The comonomers, representative of cellulose-derived (DBI) or potentially lignin-derived (EC) raw materials, were tested at levels of 25%, 33%, and 50% by mass and the resulting products were characterized by infrared spectroscopy, thermogravimetric analysis, and dynamic mechanical analysis. Both DBI and EC were incorporated into the thermosets to a high extent (>90%) at all concentrations tested. The AESO-DBI and AESO-EC blends showed substantial degradation at 390–400 °C, similar to pure AESO. Glass transition temperatures decreased as comonomer content increased; the highest T_g of 41.4 °C was observed for AESO-EC (3:1) and the lowest T_g of 1.4 °C was observed for AESO-DBI (1:1). Accordingly, at 30 °C the storage modulus values were highest for AESO-EC (3:1, 37.0 MPa) and lowest for AESO-DBI (1:1, 1.5 MPa).

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.