Heterogeneous Double Metal Cyanide Catalyzed Synthesis of Poly(ε-caprolactone) Polyols for the Preparation of Thermoplastic Elastomers

Tran, Chinh Hoang; Lee, Min-Woong; Park, Sangwoo; Jeong, Jae-Eon; Lee, Soo Jeong; Song, Wenliang; Huh, PilHo; Kim, Il

doi:10.3390/catal11091033

Cited by 11 publications

(8 citation statements)

References 54 publications

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“…The polymerization of PO was performed following a previously reported protocol [ 28 ]. In a typical procedure, a prescribed amount of the DMC catalyst and initiator are added to a 500-mL stainless steel reactor (Parr Instrument Company, Moline, IL, USA).…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Polyether, Poly(Ether Carbonate) and Poly(Ether Ester) Polyols Using Double Metal Cyanide Catalysts Bearing Organophosphorus Complexing Agents

Lee,

Tran,

Heo

et al. 2024

Polymers

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We developed a series of Zn(II)-Co(III) double metal cyanide (DMC) catalysts with exceptional activity for the ring-opening polymerization of various cyclic monomers by employing diverse organophosphorus compounds as complexing agents (CAs). The chemical structure and composition of DMC catalysts were investigated by commonly used analysis such as infrared and X-ray photoelectron spectroscopies, and elemental analysis combining with in situ NMR analysis to determine the complexation types of organophosphorus compounds the catalyst framework. The resulting catalysts exhibited very high turnover frequencies (up to 631.4 min−1) in the ring-opening polymerization (ROP) of propylene oxide and good efficiency for the ROP of ε-caprolactone. The resultant polyester polyols are suitable to use as an macroinitiator to produce well-defined poly(ester ether) triblock copolymers of 1800–6600 g mol−1 and dispersity of 1.16–1.37. Additionally, the DMC catalysts bearing organophosphorus compounds CAs exhibited remarkable selectivity for the copolymerization of PO with CO2, yielding poly(ether carbonate) polyols with carbonate contents up to 34.5%. This study contributes to the development of efficient DMC catalytic systems that enable the synthesis of high-quality polyols for various applications.

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Section: Methodsmentioning

confidence: 99%

Synthesis of Polyether, Poly(Ether Carbonate) and Poly(Ether Ester) Polyols Using Double Metal Cyanide Catalysts Bearing Organophosphorus Complexing Agents

Lee,

Tran,

Heo

et al. 2024

Polymers

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“…TPU synthesized from polycarbonate polyols has high strength, excellent hydrolysis resistance and abrasion resistance, but the cost is high [ 8 ]. Poly(ε-caprolactone) diol TPU has good comprehensive performance, but its cost restricts applications [ 9 ]. These oligomeric diols can be used as a soft segment of the polymer alone or can be used to synthesize polyurethane, The reaction to form urethane group is shown in Figure 2 , thus realizing many properties and satisfying extensive application fields.…”

Section: Research Progress Of Elastomer Materialsmentioning

confidence: 99%

“…The high order of the hard segment also leads to a microphase separation between the soft and hard segments, thus giving TPU excellent physical and mechanical properties. In addition, compared with TDI, MDI has a larger molecular weight and lower vapor pressure, and the resulting TPU is more environmentally friendly [ 9 ].…”

Section: Research Progress Of Elastomer Materialsmentioning

confidence: 99%

Research Progress of Elastomer Materials and Application of Elastomers in Drilling Fluid

Yang

Jiang

2023

Polymers

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An elastomer is a material that undergoes large deformation under force and quickly recovers its approximate initial shape and size after withdrawing the external force. Furthermore, an elastomer can heal itself and increase volume when in contact with certain liquids. They have been widely used as sealing elements and packers in different oil drilling and development operations. With the development of drilling fluids, elastomer materials have also been gradually used as drilling fluid additives in drilling engineering practices. According to the material type classification, elastomer materials can be divided into polyurethane elastomer, epoxy elastomer, nanocomposite elastomer, rubber elastomer, etc. According to the function classification, elastomers can be divided into self-healing elastomers, expansion elastomers, etc. This paper systematically introduces the research progress of elastomer materials based on material type classification and functional classification. Combined with the requirements for drilling fluid additives in drilling fluid application practice, the application prospects of elastomer materials in drilling fluid plugging, fluid loss reduction, and lubrication are discussed. Oil-absorbing expansion and water-absorbing expansion elastomer materials, such as polyurethane, can be used as lost circulation materials, and enter the downhole to absorb water or absorb oil to expand, forming an overall high-strength elastomer to plug the leakage channel. When graphene/nano-composite material is used as a fluid loss additive, flexibility and elasticity facilitate the elastomer particles to enter the pores of the filter cake under the action of differential pressure, block a part of the larger pores, and thus, reduce the water loss, while it would not greatly change the rheology of drilling fluid. As a lubricating material, elastic graphite can form a protective film on the borehole wall, smooth the borehole wall, behaving like a scaly film, so that the sliding friction between the metal surface of the drill pipe and the casing becomes the sliding friction between the graphite flakes, thereby reducing the friction of the drilling fluid. Self-healing elastomers can be healed after being damaged by external forces, making drilling fluid technology more intelligent. The research and application of elastomer materials in the field of drilling fluid will promote the ability of drilling fluid to cope with complex formation changes, which is of great significance in the engineering development of oil and gas wells.

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“…For this purpose, the replacement of homogenous catalysts with heterogeneous ones represents a potential solution. This feature allows to recover and reuse the catalyst, reducing the metal content and wastes produced [37,38]. Herein, we studied a new and eco-compatible cerium(III) salt-solid supported catalyst with a remarkable activity in PUA synthesis.…”

Section: Introductionmentioning

confidence: 99%

An efficient synthesis of bio-based Poly(urethane-acrylate) by SiO2-Supported CeCl3·7H2O–NaI as recyclable Catalyst

Pastore

Gabrielli

Giacomantonio

et al. 2022

Results in Materials

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Heterogeneous Double Metal Cyanide Catalyzed Synthesis of Poly(ε-caprolactone) Polyols for the Preparation of Thermoplastic Elastomers

Cited by 11 publications

References 54 publications

Synthesis of Polyether, Poly(Ether Carbonate) and Poly(Ether Ester) Polyols Using Double Metal Cyanide Catalysts Bearing Organophosphorus Complexing Agents

Synthesis of Polyether, Poly(Ether Carbonate) and Poly(Ether Ester) Polyols Using Double Metal Cyanide Catalysts Bearing Organophosphorus Complexing Agents

Research Progress of Elastomer Materials and Application of Elastomers in Drilling Fluid

An efficient synthesis of bio-based Poly(urethane-acrylate) by SiO2-Supported CeCl3·7H2O–NaI as recyclable Catalyst

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