UV-Curable Cycloaliphatic Epoxide Based on Modified Linseed Oil: Synthesis, Characterization and Kinetics

✍ Scribed by Kunrong Zou; Mark D. Soucek

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 190 KB
• Volume: 206
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.200400390

✦ Synopsis

Abstract

Summary: Linseed oil was derivitized with 1,3‐butadiene via a Diels‐Alder reaction. The cycloaddition adduct was then epoxidized using a hydrogen peroxide/quaternary ammonium tetrakis(diperoxotungsto) phosphate system. The cyclohexene derivitized linseed oil (CLO) and the epoxidized cyclohexene derivatized linseed oil (ECLO) were characterized by ^1^H NMR, ^13^C NMR, and FT‐IR. In addition, 2D NMR measurements (COSY) were performed on CLO and ECLO to identify the cyclohexyl structures. Molecular weight was determined by ESI‐MS and GPC. The ECLO was photo‐polymerized using UV‐light, and the kinetics of the photo‐curing reactions was evaluated by real‐time FT‐IR and photo‐DSC. All the characterizations supported the successful introduction of cyclohexyl structure to the backbone of linseed oil directly and indirectly. Real‐time FT‐IR and photo‐DSC indicated the slightly improved reactivity of ECLO.

Ideal structure of cyclohexene linseed oil (CLO).

imageIdeal structure of cyclohexene linseed oil (CLO).