Synthesis of bio-based unsaturated polyester resins and their application in waterborne UV-curable coatings

Dai, Jinyue; Ma, Songqi; Liu, Xiaoqing; Han, Lijing; Wu, Yonggang; Dai, Xinyan; Zhu, Jin

doi:10.1016/j.porgcoat.2014.10.007

Cited by 118 publications

(78 citation statements)

References 41 publications

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“…As expected, when compared to the 1 H NMR spectrum of BioUP_1, the main difference concerns the resonances corresponding to the protons of ItaAc. The resonances ascribed to the unsaturated diacid can be identified at 6.3 ppm (a 1 ), 5.7 ppm (a 2 ) and 3.35 ppm (a 3 ) [31,32]. It should also be pointed out the presence of the protons characteristic of mesaconate moieties at ca.…”

Section: Results and Discussion 31 Polycondensation Of Ups Based Onmentioning

confidence: 87%

Going greener: Synthesis of fully biobased unsaturated polyesters for styrene crosslinked resins with enhanced thermomechanical properties

Costa¹,

Fonseca²,

Moniz³

et al. 2017

Express Polym. Lett.

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Abstract. The main goal of this work was the development of fully biobased unsaturated polyesters (UPs) that upon crosslinking with unsaturated monomers (UM) could lead to greener unsaturated polyester resins (UPRs) with similar thermomechanical properties to commercial fossil based UPR. After the successful synthesis of the biobased UPs, those were crosslinked with styrene (Sty), the most commonly used monomer, and the influence of the chemical structure of the UPs on the thermomechanical characteristics of UPRs were evaluated. The properties were compared with those of a commercial resin (Resipur 9837 ® ). The BioUPRs presented high gel contents and contact angles that are similar to the commercial resin. The thermomechanical properties were evaluated by dynamic mechanical thermal analysis (DMTA) and it was found that the UPR synthesized using propylene glycol (PG), succinic acid (SuAc) and itaconic acid (ItAc) presented very close thermomechanical properties compared to the commercial resin.

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Section: Results and Discussion 31 Polycondensation Of Ups Based Onmentioning

confidence: 87%

Going greener: Synthesis of fully biobased unsaturated polyesters for styrene crosslinked resins with enhanced thermomechanical properties

Costa¹,

Fonseca²,

Moniz³

et al. 2017

Express Polym. Lett.

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“…Even though the oily AESO exhibited the low polarity, all the PIB 90 G 10 /AESO systems showed the highest grade of adhesion (5B) according to the ASTM D3359-09. In our previous work [17], the UV-cured PIB exhibited the pencil hardness of 2H. However, as for the PIBG systems (PIB 97.5 G 2.5 , PIB 95 G 5 , PIB 92.5 G 7.5 and PIB 90 G 10 ), the pencil hardness was slightly increased with the increasing content of glycerol.…”

Section: Coating Propertiesmentioning

confidence: 75%

“…In our previous work [17], three bio-based unsaturated polyesters were synthesized from itaconic acid and different diols (ethylene glycol, 1,4-butanediol and 1,6-hexandiol) derived from renewable resources. And the waterborne UV-cured coatings based on these polyesters exhibited high hardness, good water resistance and solvent resistance.…”

Section: Introductionmentioning

confidence: 99%

High bio-based content waterborne UV-curable coatings with excellent adhesion and flexibility

Dai

et al. 2015

Progress in Organic Coatings

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“…Combining renewable monomers with efficient processing would therefore be ideal when developing sustainable coatings. This has already been explored, for example, by Dai et al 21 ; this group published several studies about renewable polyesters from IA; in one study biobased unsaturated polyesters from IA and different diols were synthesized and subsequently formulated to produce waterborne UV-curable coatings. The cured polyesters exhibited high hardness and good solvent resistance.…”

Section: Introductionmentioning

confidence: 99%

Biobased UV-curable coatings based on itaconic acid

2017

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A series of renewable unsaturated polyesters were synthesized from itaconic acid (IA), succinic acid, and 1,4-butanediol by solvent-free polycondensation. Previous studies utilizing IA to make polyesters for coating applications have shown great potential; however, the curing and material properties have not been investigated in detail. The aim of this study was to investigate how the curing is affected by the amount of unsaturations and how well itaconate-based polyesters crosslink without the addition of any other unsaturated monomers or reactive diluents. The chemical structures of the polyesters were confirmed with FTIR, 1 H-NMR, and THF-SEC. The degree of curing was studied with FTIR, and the mechanical properties of the crosslinked polyesters were evaluated with DMA, pendulum hardness, and microindentation. The degree of curing was found to be up to 75%, and furthermore, it was found that the final mechanical properties of the crosslinked coatings could be tuned by modifying the IA content in the monomer composition. The results from DMA showed that there is a clear trend between mechanical properties and crosslinking density.

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Synthesis of bio-based unsaturated polyester resins and their application in waterborne UV-curable coatings

Cited by 118 publications

References 41 publications

Going greener: Synthesis of fully biobased unsaturated polyesters for styrene crosslinked resins with enhanced thermomechanical properties

Going greener: Synthesis of fully biobased unsaturated polyesters for styrene crosslinked resins with enhanced thermomechanical properties

High bio-based content waterborne UV-curable coatings with excellent adhesion and flexibility

Biobased UV-curable coatings based on itaconic acid

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