MCM-41-supported double metal cyanide nanocomposite catalyst for ring-opening polymerisation of propylene oxide

Cao, Xiaoyan; Wang, Kaijun; Mao, Qifan; Gu, Zhenggui; Wang, Fang

doi:10.1007/s11051-022-05443-1

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…We evaluated the catalytic performance of various solid-base catalysts in the synthesis of low-molecularweight PPG under speci c reaction conditions (Table S4). The CoMgAl-LDO (P123) catalyst achieved the highest PO conversion (96.30%), surpassing that of other prepared catalysts and reported alternatives [38,39]. The nitrogen isothermal and CO 2 -TPD pro les indicated that cobalt can improve the strength of the catalytic sites, while P123 improved the surface morphology of the catalysts.…”

Section: Catalytic Characteristicsmentioning

confidence: 90%

P123-CoMgAl nanocomposite for sustainable and high-conversion epoxide ring-opening polymerization

Xu,

Cao,

Yang

et al. 2024

Preprint

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The ring-opening polymerization lays the foundation for synthesizing polypropylene glycol (PPG). Nevertheless, homogeneous alkali catalysts generally necessitate intricate posttreatments, hampering green synthesis and ensuring environmental sustainability. Here, we develop a heterogeneous epoxide polymerization method based on a P123-modified nanocomposite layered double oxide (CoMgAl-LDO (P123)). Benefiting from the designable and self-assembled P123 micelles, CoMgAl-LDO (P123) yields intergranular gaps and consistent mesoporous channels for effective catalysis. Consequently, CoMgAl-LDO (P123) has a large surface-to-volume ratio of 190.0 m2 g− 1 and a pore volume of 1.0 cm3 g− 1. More importantly, the epoxide catalytic conversion approaches 96.3%, which is higher than the 92% conversion of other solid catalysts. Our strategy addresses the trade-off issue that alkali catalysts face in terms of sustainability and operational complexity, holding great promise in green chemistry.

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Section: Catalytic Characteristicsmentioning

confidence: 90%