Synthesis of Novel Hexathiolated Squalene and Its Thiol-Ene Photopolymerization with Unsaturated Monomers

• 作者: Ena Adeligna Obregón Blandón Ramiro Guerrero Santos Ricardo Acosta Ortiz
• 来源期刊: 绿色与可持续化学(英文)
• 学科: 化学
• 关键词: SQUALENE THIOL-ENE PHOTOPOLYMERIZATION BIOMATERIALS Kinetics
• 年，卷（期）: 2012,（2）
• 页码范围: 62-70
• 页数: 9页
• 分类号: O6

摘要

In this work is described the synthesis of a multifunctional thiolated squalene. Thiol-ene coupling reactions were employed to functionalize the six double bonds of squalene, using thiolacetic acid. Hydrolysis of the resulting thioacetates, rendered the corresponding hexathiolated squalene SQ6SH. This compound was further photopolymerized separately with triallyl cyanurate, pentaerythritol triacrylate and diethyleneglycol divinyl ether. Real Time FTIR kinetics revealed that homopolymerization of the ene monomers took place in addition to the thiol-ene photopolymerization. Flexible films were obtained when SQ6SH was photopolymerized in bulk with the above mentioned unsaturated monomers.