Synthesis of poly(n-octadecyl methacrylate-co-2-hydroxyethyl methacrylate) copolymer and their utilization as polymeric stabilizer in the preparation of PCL microspheres

Huda, Muhsina K.; Das, Pranjal Pratim; Saikia, Prakash J.; Baruah, Sanjib

doi:10.1007/s00289-016-1795-z

Cited by 11 publications

(9 citation statements)

References 47 publications

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“…4. A sharp diffraction peak appeared at 2θ = 21.5 o , which corresponds to 4.14 Å spacing that is harmonic with the typical diffraction peak of the copolymer in the crystalline form, and similar results were obtained by Goswami et al (2019), Huda et al (2017) and Rodbari et al (2016). This value corresponds to the van der Walls contract of non-bonded atoms in several long-chain acrylates and methacrylates comb-like polymers.…”

Section: X-ray Diffraction Xrdsupporting

confidence: 80%

“…This proves that as a result of polymerization, most of the vinyl monomers contributed to polymers. Also, the number of H protons and chemical shifts have been in good agreement with SA (Huda et al 2017;Soliman et al 2018;Zhu et al 2018). Furthermore, the synthesis of the copolymer at different mass ratios was successful and confirmed by the appearance of the signal at 2.4 ppm, which is attributed to the CH protons of amide functionality and the disappearance of the vinyl proton signal at 5.59-6.27 ppm, as shown in Fig.…”

Section: H Nmr Spectroscopicsupporting

confidence: 73%

“…The addition of the SA monomer resulted in the hollowing of the SA-co-BA morphology. Rodbari et al (2016) and Huda et al (2017) reported that stearyl acrylate has a sponge-like structure that permits the adding of SA to create a cavity found on the PPD copolymer. The existence of a hollow in the copolymer could provide some space for absorption.…”

Section: Sem Analysismentioning

confidence: 99%

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Synthesis, characterization and evaluation of stearyl acrylate-co-behenyl acrylate copolymer as a pour point depressant of waxy crude oil

Elarbe

Elganidi

Ridzuan

et al. 2021

J Petrol Explor Prod Technol

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Pour point depressant (PPD) has the competitive advantage of lowering the temperature of the wax appearance (WAT) and crude oil viscosity. In this paper, a novel PPD of poly stearyl acrylate-co-behenyl acrylate (SA-co-BA) in various mass ratios (1:1, 2:1, 3:1, 1:2 and 1:3) was effectively synthesized by solution radical polymerization method, and characterized by fourier transform infrared FTIR, proton nuclear magnetic resonance NMR, x-ray diffraction XRD and scanning electron microscopy SEM. The SA-co-BA PPD was evaluated on Malaysian crude oil via the pour point, the rheological and cold finger analysis to prevent the wax deposition at low temperature and improve flowability. The findings showed that the mass ratio (1:1) at 1000 ppm has a positive effect on the pour point depression from 11 to 2 °C. It was investigated from the rheological measurement that the viscosity of crude oil increases as the temperature decreases. Whereas, the viscosity decreases as the shear rate increases and as shear rate increases, shear stress increases. The flowability performance of the crude by the mass ratio of 1:1 at 1000 of the SA-co-BA concentrations have improved by 89.76%. The highest paraffin inhibition efficiency PIE of wax deposited was obtained at 1:1 of the mass ratio by 44.14%, indicating the smallest amount of wax is formed. This finding is interestingly attributed to the acrylate groups that have a long alkyl chain. Thus, SA-co-BA copolymer was demonstrated to be an appreciable pour point depressant that can prevent the wax deposition at low temperature and increasing the flowability of Malaysian crude oil.

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Section: X-ray Diffraction Xrdsupporting

confidence: 80%

Section: H Nmr Spectroscopicsupporting

confidence: 73%

Section: Sem Analysismentioning

confidence: 99%

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Synthesis, characterization and evaluation of stearyl acrylate-co-behenyl acrylate copolymer as a pour point depressant of waxy crude oil

Elarbe

Elganidi

Ridzuan

et al. 2021

J Petrol Explor Prod Technol

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“…The longer copolymeric chains can occupy a larger volume at the particle surface and, as a result, more particle surface area can be stabilized with the higher MWs stabilizer resulting smaller particle size . High molecular weight copolymer with long hydrophobic end groups act as good stabilizing agent, and this hydrophobic segment strongly adsorbs or anchors to the polymer solvent interface …”

Section: Resultsmentioning

confidence: 99%

Copolymer with long chain alkyl group as stabilizer in the preparation of biodegradable polyester particle

Kashyap

Das

Phukan

et al. 2017

Polymers for Advanced Techs

Self Cite

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Poly(eicosyl methacrylate-co-2-hydroxyethyl methacrylate) is synthesized by free radical polymerization of eicosyl methacrylate and 2-hydroxyethyl methacrylate by using 2,2′azobisisobutyronitrile as initiator in N,N-dimethylformamide at 80°C. Copolymers of different molecular weights are synthesized and well characterized by different analytical techniques and used as a stabilizer in the preparation of polycaprolactone and polylactic acid particles by solvent evaporation method. The formation of the polymer particles and its morphology with respect to the stabilizer molecular weights, concentration, and reaction time are studied. Well dispersed poly(caprolactone) and poly(lactic acid) particles are formed, which demonstrated the efficiency of the copolymeric stabilizer. Polymer particle sizes and its stability depend on the molecular weights and concentration of the stabilizer. The surface morphology and particle sizes of the prepared particles are characterized by field emission scanning electron microscope.

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“…1 In recent years, these polymers have received a lot of attention in the fields of interfacial compatibilization of composites, shape memory materials, temperature responsive materials, self-assembled materials, polymer surfactants, etc. 2–14…”

Section: Introductionmentioning

confidence: 99%

Conformational, crystalline and rheological properties of poly(octadecyl-co-methyl acrylate) statistically random copolymers

Pan

Zhu

et al. 2023

Polym. Chem.

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Synthesis of poly(n-octadecyl methacrylate-co-2-hydroxyethyl methacrylate) copolymer and their utilization as polymeric stabilizer in the preparation of PCL microspheres

Cited by 11 publications

References 47 publications

Synthesis, characterization and evaluation of stearyl acrylate-co-behenyl acrylate copolymer as a pour point depressant of waxy crude oil

Synthesis, characterization and evaluation of stearyl acrylate-co-behenyl acrylate copolymer as a pour point depressant of waxy crude oil

Copolymer with long chain alkyl group as stabilizer in the preparation of biodegradable polyester particle

Conformational, crystalline and rheological properties of poly(octadecyl-co-methyl acrylate) statistically random copolymers

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