NDLI: Bio-Based Crosslinked Polymers Synthesized from Functionalized Soybean Oil and Squalene by Thiol–Ene UV Curing

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Bio-Based Crosslinked Polymers Synthesized from Functionalized Soybean Oil and Squalene by Thiol–Ene UV Curing

Content Provider	MDPI
Author	Grauzeliene, Sigita Valaityte, Deimante Motiekaityte, Greta Ostrauskaite, Jolita
Copyright Year	2021
Description	The development of polymers photopolymerized from renewable resources are extensively growing as fulfills green chemistry and green engineering principles. With the rapid growth of consumerism, research on innovative starting materials for the preparation of polymers may help to reduce the negative impact of petroleum-based plastic materials on the global ecosystem and on animal and human health. Therefore, bio-based crosslinked polymers have been synthesized from functionalized soybean oil and squalene by thiol–ene ultra-violet (UV) curing. First, thiol–ene UV curing of squalene was performed to introduce thiol functional groups. Then, hexathiolated squalene was used as a crosslinker in click UV curing of acrylated epoxidized soybean oil. Two photoinitiators, 2-hydroxy-2-methylpropiophenone and ethylphenyl (2,4,6-trimethylbenzoyl) phosphinate, were tested in different quantities. Rheological properties of the resins were monitored by real-time photorheometry. The characterization of obtained polymers was performed by differential scanning calorimetry, thermogravimetry, and Shore A hardness measurements. Polymers possessed higher storage modulus, thermal characteristics, Shore A hardness, and lower swelling value when ethylphenyl (2,4,6-trimethylbenzoyl) phosphinate was used as photoinitiator.
Starting Page	2675
e-ISSN	19961944
DOI	10.3390/ma14102675
Journal	Materials
Issue Number	10
Volume Number	14
Language	English
Publisher	MDPI
Publisher Date	2021-05-20
Access Restriction	Open
Subject Keyword	Materials Coatings and Films Thiol–ene Click Reaction Soybean Oil Hexathiolated Squalene Uv Curing Bio-based Crosslinked Polymer
Content Type	Text
Resource Type	Article

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