Novel Palm Oil Based Polyols With Amine Functionality Synthesis via Ring Opening Reaction of Epoxidized Palm Oil

Soloi, Sabrina; Majid, Rohah A.; Rahmat, Abdul Razak

doi:10.11113/jt.v80.11062

Cited by 6 publications

(10 citation statements)

References 34 publications

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“…The materials used were palm oil polyol obtained from the previous study (Soloi et al, 2018), isophorone diisocyanate (98% purity, Sigma, US), hydrazine hydrate (50-60% purity, Sigma, US), and acetone (99.5% purity, ACS).…”

Section: Experimental Section 21 Materialsmentioning

confidence: 99%

“…PU films were prepared using the pre-polymer process as described by (Zulkifli et al, 2017). Palm oil polyol (POP) used in this study was obtained from the previous study (Soloi et al, 2018). Initially, all formulation was prepared in the ratio of 1:0.6 with 50 wt% acetone; however, when brittle film was obtained, the ratio and acetone content was reduced as tabulated in table 1.…”

Section: Preparation Of Polyurethane Coatingmentioning

confidence: 99%

“…The reaction between polyol and isocyanate to form a thin film polyurethane is a type of condensation polymerization resulting in urethane linkage. The palm oil polyol (POP) used in this study was synthesized in our previous study (Soloi et al, 2018). Isophorone diisocyanate (IPDI) as a source of isocyanate component was used since IPDI is easily soluble and expected to give a better transparency to the thin film obtained (More et al, 2013).…”

Section: Ftir Spectroscopy Analysismentioning

confidence: 99%

“…Due to the increasing awareness of the social community towards environmentally friendly products, it is desirable to study the ability of palm oil to replace the petroleum-based polyols. In this study, polyurethane films with isocyanate to polyol ratio of 1:0.6 and 1:0.5 were prepared using palm oil polyol prepared in a previous study (Soloi, Majid, & Rahmat, 2018). The amine-based palm polyol has an OH value range between 240-253 mg KOH/g and molecular weight around 450 Da.…”

Section: Introductionmentioning

confidence: 99%

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Palm Oil Based Water-Resistant Coating using Pre-Polymer Method

Soloi¹,

Usman²

2021

JST

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The paper presents some results on the ability of palm oil polyol to replace the petroleum-based polyol in polyurethane (PU) synthesis. In this study, palm oil polyol with amine functionality with hydroxyl value (OH value) between 240 -253 mg KOH/g was used as the polyol component to replace the conventional petroleum-based polyol. Four different formulationsof polyurethane coating have been prepared using pre-polymer process namely PU1, PU2, PU3 and PU4 with the polyol to isophorone diisocyanate ratio (OH:NCO) of 1:0.6 and 1:0.5 and acetone within 25-50 wt %. PU1 (1:0.6) and PU2(1:0.5) result in brittle film, while PU3 (1:0.6) and PU4 (1:05) has a soft and flexiblefilm with better transparency. This finding establishes that the acetone content effect the final properties of the polyurethane formed. The polymerization reaction was monitored using thefourier transform infra-red spectroscopy and it was found that the peak correspondsto NH (3302 cm-1), CO (1627 cm-1) and CN (1543 cm-1) stretching of urethane linkage appearingin all the PU films. The water uptake test was done on the films and it was found that the percentage of water uptake is less than 5% within 24 hours of immersion.The surface morphology of the PU films shows thathomogeneitywas achieved in 1:0.6 of OH:NCO ratio with 25 wt% of acetone. The PU films havethe potential to be developed for water resistant coating.

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Section: Experimental Section 21 Materialsmentioning

confidence: 99%

Section: Preparation Of Polyurethane Coatingmentioning

confidence: 99%

Section: Ftir Spectroscopy Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Palm Oil Based Water-Resistant Coating using Pre-Polymer Method

Soloi¹,

Usman²

2021

JST

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“…With the threat of fossil oil depletion, substantial environmental impacts, and economic precarity, there is a growing need for sustainable alternatives to petroleum-derived polyols. Vegetable oils have become a significant potential source of biobased polyols or biopolyols due to their excellent and vast properties, such as unique reactive sites and structures that can be modified and converted into suitable monomers. , Numerous vegetable oils including castor oil, , soybean oil, − palm oil, corn oil, canola oil, rice bran oil, olive oil, grapeseed oil, linseed oil, rapeseed oil, and all their derivatives, have already been employed in polyol synthesis for various applications. These vegetable oils contain varying degrees of unsaturation in their fatty acids, allowing for their modification and customization for individual applications .…”

Section: Introductionmentioning

confidence: 99%

Flexible Polyurethane Foams Modified with Novel Coconut Monoglycerides-Based Polyester Polyols

Omisol,

Aguinid,

Abilay

et al. 2024

ACS Omega

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Coconut oil, a low-molecular-weight vegetable oil, is virtually unutilized as a polyol material for flexible polyurethane foam (FPUF) production due to the high-molecular-weight polyol requirement of FPUFs. The saturated chemistry of coconut oil also limits its compatibility with widely used polyol-forming processes, which mostly rely on the unsaturation of vegetable oil for functionalization. Existing studies have only exploited this resource in producing low-molecular-weight polyols for rigid foam synthesis. In this present work, high-molecular-weight polyester polyols were synthesized from coconut monoglycerides (CMG), a coproduct of fatty acid production from coconut oil, via polycondensation at different mass ratios of CMG with 1:5 glycerol:phthalic anhydride. Characterization of the CMG-based polyol (CMGPOL) products showed number-average molecular weights between 1997 and 4275 g/mol, OH numbers between 77 and 142 mg KOH/g, average functionality between 4.8 and 5.8, acid numbers between 4.49 and 23.56 mg KOH/g, and viscosities between 1.27 and 89.57 Pa•s. The polyols were used to synthesize the CMGPOL-modified PU foams (CPFs) at 20 wt % loading. The modification of the foam formulation increased the monodentate and bidentate urea groups, shown using Fourier transform infrared (FTIR) spectroscopy, that promoted microphase separation in the foam matrix, confirmed using atomic force microscopy (AFM) and differential scanning calorimetry (DSC). The implications of the structural change to foam morphology and open cell content were investigated using a scanning electron microscope (SEM) and gas pycnometer. The density of the CPFs decreased, while a significant improvement in their tensile and compressive properties was observed. Also, the CPFs exhibited different resiliency with a correlation to microphase separation. These findings offer a new sustainable polyol raw material that can be used to modify petroleum-based foam and produce flexible foams with varying properties that can be tailored to meet specific requirements.

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