Synthesis of crystallizable poly(behenyl methacrylate)-based block and statistical copolymers and their performance as wax crystal modifiers

Dorsman, Isabella R.; Chan, Derek H. H.; Cunningham, Victoria J.; Brown, Steven L.; Williams, Clive N.; Varlas, Spyridon; Armes, Steven P.

doi:10.1039/d2py01023b

Cited by 5 publications

(4 citation statements)

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“…The long alkyl chains in the polymers could separate crude oil micelles, impede the gelation of crude oil molecules. Dorsma et al 124 used behenyl methacrylate-based diblock and statistical copolymers to prepare a new polymeric PPD by a reversible addition−fragmentation chain transfer (RAFT) solution polymerization method. They found that this PPD significantly reduced the overall size of the wax crystals by cocrystallization with wax molecules, with weaker gelation and improved inhibition properties.…”

Section: Classification Of Pour Point Depressantsmentioning

confidence: 99%

Research Status and Outlook of Mechanism, Characterization, Performance Evaluation, and Type of Pour Point Depressants in Waxy Crude Oil: A Review

Li,

Guo,

et al. 2024

Energy Fuels

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With the depletion of conventional oil resources, waxy crude oil has become a focus of development. Wax deposition is prone to occur in crude oil at low temperatures, and can easily cause pipeline blockage. Hence, preventing wax deposition while ensuring the safety of pipeline transportation and reducing energy consumption has become a popular research topic. Pour point depressants are normally used to solve the wax deposition problem. In this paper, recent research on pour point depressants is reviewed and the mechanism by which pour point depressants inhibit wax deposition is clarified. Commonly used characterization methods and performance evaluations in the research of pour point depressants are summarized. According to the composition of pour point depressants, the chemical structures and effects of polymers, surfactants, green pour point depressants, and nanohybridized pour point depressants are analyzed. Among these four, nanohybridized pour point depressants have better application prospects due to their unique size, excellent heat resistance, stability, and exceptional optical, electrical, and magnetic properties, which can effectively improve the inhibition performance of pure polymers or surfactants. Finally, future challenges in pour point depressants are analyzed.

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Section: Classification Of Pour Point Depressantsmentioning

confidence: 99%

Research Status and Outlook of Mechanism, Characterization, Performance Evaluation, and Type of Pour Point Depressants in Waxy Crude Oil: A Review

Li,

Guo,

et al. 2024

Energy Fuels

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“…On the other hand, wax crystallization is desired in the development of novel materials for energy storage in the energetics, electronics, and automotive industries. − Moreover, waxes exhibit a strong hydrophobic nature and are commonly used as water repellents, protective layers, and surface modifiers . Controlling wax crystallization is crucial in industrial processes of casting, injection molding, 3D printing, sensor materials design, and pharmaceutical applications. − For the reasons above, the exploration and modification of the crystallization behavior of waxes through various approaches become essential. − …”

Section: Introductionmentioning

confidence: 99%

“… 28 − 31 For the reasons above, the exploration and modification of the crystallization behavior of waxes through various approaches become essential. 32 − 36 …”

Section: Introductionmentioning

confidence: 99%

Design of Crystal Growth Dimensionality in Synthetic Wax: The Kinetics of Nonisothermal Crystallization Processes

Rozwadowski,

Kolek

2023

J. Phys. Chem. B

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The demand for the development of multifunctional materials in emerging technologies has stimulated intensive research on the control of crystallization processes in numerous scientific and engineering fields. In this article, we examine the kinetics of nonisothermal melt crystallization in synthetic wax using differential scanning calorimetry (DSC) supported by polarized optical microscopy (POM) to describe crystallization modes in a multicomponent molecular system. We detected the macroscopic growth of three crystal phases and the formation of two crystal phases as a transformation from a disordered crystal mesophase into an ordered crystal. To characterize individual crystal phase formation, we examine the activation energy evaluated by isoconversional analysis and utilize the Ozawa and Mo methods to determine the kinetic details of the crystal growth from the isotropic phase. Our investigation reveals the possibility of the design of crystal growth dimensionality as three-dimensional spherulitic-like, two-dimensional rodlike, and one-dimensional needle-shaped crystal forms of shorter n-alkanes by controlling the solidification pathway of long-chain n-alkanes and the interplay of the thermodynamic and kinetic mechanisms of crystallization.

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“…RAFT technique was utilized since it offers a broad window of tolerance to polymerize different functional monomers. 32,33 The polymerization reactions were performed in tetrahydrofuran (THF) at 60 °C in the presence of PIB-CDP and 2,2′-azobisisobutyronitrile (AIBN) as a source of radical with the following stoichiometry: [monomer]/[PIB-CDP]/[AIBN] = 50 : 1 : 0.2, where [monomer] represents the concentrations of AA/Boc-Ala-HEMA/PEGMA. Similarly, a homopolymer of PEGMA was also prepared using the same stoichiometry using CDP as the CTA.…”

mentioning

confidence: 99%

Charge variable PIB-based block copolymers as selective transmembrane ion transporters

et al. 2023

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Synthesis of crystallizable poly(behenyl methacrylate)-based block and statistical copolymers and their performance as wax crystal modifiers

Abstract: Behenyl methacrylate-based diblock and statistical copolymers are evaluated as additives for the crystal habit modification of a model wax (n-octacosane) in n-dodecane. The statistical copolymers more strongly influence the wax crystal morphology.

Cited by 5 publications

References 50 publications

Research Status and Outlook of Mechanism, Characterization, Performance Evaluation, and Type of Pour Point Depressants in Waxy Crude Oil: A Review

Research Status and Outlook of Mechanism, Characterization, Performance Evaluation, and Type of Pour Point Depressants in Waxy Crude Oil: A Review

Design of Crystal Growth Dimensionality in Synthetic Wax: The Kinetics of Nonisothermal Crystallization Processes

Charge variable PIB-based block copolymers as selective transmembrane ion transporters

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