Double metal cyano catalyst for ring opening polymerization of propylene oxide

Šutinská, V.; Pajtášová, Mariana; Ondrušová, Darina; Ľalíková, Slávka; Ferjancová, A.; Paliesková, J.; Mojumdar, S. C.

doi:10.1007/s10973-011-1314-2

Cited by 13 publications

(4 citation statements)

References 22 publications

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“…34,[53][54][55] Comparing the performance of individual DMC catalysts is limited by the diverging descriptions of catalytic action. 13,28,42,[56][57][58] Reported catalytic activity is mainly based on the resulting yield (kg per g of catalyst and/or per h) and/ or the overall conversion of monomer. 25,30,59 These numbers are not a good basis for an analysis or a targeted development.…”

Section: Introductionmentioning

confidence: 99%

Analysis of propoxylation with zinc–cobalt double metal cyanide catalysts with different active surfaces and particle sizes

Stahl,

Luinstra

2024

React. Chem. Eng.

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Section: Introductionmentioning

confidence: 99%

Analysis of propoxylation with zinc–cobalt double metal cyanide catalysts with different active surfaces and particle sizes

Stahl,

Luinstra

2024

React. Chem. Eng.

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“…Double metal cyanide (DMC) complexes discovered by General Tire Inc. in early 1960s are well known as catalysts for epoxide polymerization 10‐16 . These active catalysts generally have higher activity than traditional catalysts for epoxide polymerizations, 17,18 and can be used to synthesize various polymer products, such as polyether, polyester, 11 and polyether‐ester polyol 19 . The polyether polyols synthesized by DMC have low unsaturation and narrow molecular weight distribution (MWD) when compared with the counterparts made using basic (KOH) catalyst.…”

Section: Introductionmentioning

confidence: 99%

A novel polyether polyol contains repeating cyclohexane units and its application on reactive polyurethane adhesive

Zong

Fang

Zhao

et al. 2020

Polymers for Advanced Techs

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A novel polyether polyol was successfully synthesized from cyclohexene oxide (CO), propylene oxide (PO), and poly(propylene glycol) 400 through ring-opening polymerization, catalyzed by double metal cyanide catalyst for the first time. Then, the obtained cyclohexane-based polyether polyol (CPOL) further reacted with 4,4 0-diphenylmethane diisocyanate to form reactive polyurethane adhesive (RPUA). The thermal properties and mechanical strength of the RPUA were characterized by differential scanning calorimetry, dynamic mechanical analysis, thermogravimetric analysis, and lap shear strength test. It was found that with the introduction of cyclohexane units, the glass transition temperature (T g) and thermal stability of the RPUA increased about 122.3% and 3.32%, respectively. Besides, the lap shear strength of the RPUA prepared with the synthesized CPOL was 130.67% higher than the counterpart derived from conventional polyether polyol 2000. Furthermore, compared with RPUA-PPG, RPUA-CPOL also exhibited excellent lap shear strength on polycarbonate substrate even when the adhesion joints were immersed into hot water or alkaline solvent. All the above results suggest that the cyclohexane units in polyether polyol have great improvements in the thermal stability and lap shear strength of RPUA.

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“…Dimethyl ethers of ethylene glycol and diethylene glycol, 1,4-dioxane, dimethylsulfoxide and N-methylpyrrolidone are used as ligands. DMC-catalysts are more expensive compared to KOH but they are much more effective [50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%