The Effect of Glycol Derivatives on the Properties of Bio-Based Unsaturated Polyesters

被引：5
作者：
Pantic, Olga [1 ]
Spasojevic, Milica [2 ]
Dzunuzovic, Enis [3 ]
Nikolic, Marija S. [3 ]
Savic, Sanja [1 ]
Markovic, Maja [4 ]
Spasojevic, Pavle [5 ]
机构：
[1] Univ Belgrade, Ctr Excellence Environm Chem & Engn, Inst Chem Technol & Met, Njegoseva 12, Belgrade 11000, Serbia
[2] Univ Belgrade, Innovat Ctr Fac Chem, Studentski Trg 12-16, Belgrade 11000, Serbia
[3] Univ Belgrade, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
[4] Univ Belgrade, Innovat Ctr Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
[5] Univ Kragujevac, Fac Tech Sci, Svetog Save 65, Cacak 32000, Serbia
来源：
POLYMERS | 2022年 / 14卷 / 15期
关键词：
bio-based unsaturated polyester resins; glycol; dimethyl itaconate; thermal properties; thermomechanical properties; mechanical properties; STYRENE REPLACEMENTS; OIL; ISOSORBIDE; RESIN; MODEL; CURE;
D O I：
10.3390/polym14152970
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The scope of the present study was to prepare fully bio-based unsaturated polyester resins (UPRs) with comparable properties to the commercial formulations. The focus was set on the determination of the optimal prepolymer formulation using the same set of diacids (itaconic and succinic acid) and different diols (propylene glycol, isosorbide and neopentyl glycol) or its equimolar mixtures, keeping the fixed molar ratio of 1:1:2.1 in all feed compositions. Instead of commonly used styrene, bio-based dimethyl itaconate was used as a reactive diluent (RD). The rheology of the obtained resins was studied in detail. The effect of the used diol on structural (FTIR), thermal (DSC), thermomechanical (DMA), and mechanical (tensile) properties was explained. The properties of UPRs were found to be highly dependent on the diol used in the prepolymer formulation. The UPR with an equimolar ratio of propylene glycol and neopentyl glycol was shown to be the most promising candidate to compete with the commercial petroleum-based resins.
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页数：13
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