Controllable synthesis of <scp>CO<sub>2</sub></scp>‐based poly(carbonate‐ether)diols catalyzed by <scp>Salen–cobalt</scp> complex

Fan, Chaogang; Lu, Shujuan; Ge, Qingyun; Lin, S. P.; Pan, Qinmin

doi:10.1002/pol.20220076

Cited by 3 publications

References 39 publications

(71 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

Efficient and Scalable Synthesis of CO₂‐Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent

Yin,

Huang,

Zhao

et al. 2024

Journal of Polymer Science

View full text Add to dashboard Cite

CO2‐based polycarbonate diols (PPCDLs) are important raw materials. PPCDLs with high carbonate linkage (up to 99%) were controllably synthesized in high efficiency from CO2 and propylene oxide (PO) by synchronously using tetrabutyl ammonium salt of succinic (ASA) as a difunctional initiator and 1,4‐butanediol (BDO) as a difunctional proton exchange agent (PEA) in the presence of triethyl borane (TEB). In this system, the difunctional initiator (ASA) with two carboxylic anions accelerates the polymer chain propagation process, and the difunctional PEA with two active protons facilitates the proton exchange process. The molecular weight and production efficiency of PPCDL can be finely tailored by varying the feed molar ratios of PO to ASA, TEB, and BDO. Upon optimizing this scalable process, the PPCDLs with molecular weights between 1000 and 3000 Da are produced in high yields with a reaction time of 8–12 h, which is much faster than the monofunctional initiator in the presence of BDO (typically 20–36 h) or consumes much less amount of TEB and initiator in the absence of BDO. The synthesized PPCDLs possess a high 1oOH content of the terminal hydroxyl groups and a high carbonate content. Thermoplastic poly(carbonate urethane)s (PCUs) are synthesized by copolymerization of the title PPCDLs, 4,4′‐dicyclichexylmethane diisocyanate (HMDI) and BDO. Due to their high transparency and excellent mechanical properties, PCUs have great potential in the polyurethane industry, such as coatings, adhesives, leather, and thermoplastics.

show abstract

Efficient and Scalable Synthesis of CO₂‐Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent

Yin,

Huang,

Zhao

et al. 2024

Journal of Polymer Science

View full text Add to dashboard Cite

show abstract

Synthesis of CO2-philic/hydrophilic surfactant with brush structure and its application in preparing monolithic materials

Zhang,

Bian,

Yang

2024

J Polym Res

View full text Add to dashboard Cite

Synthesis of CO2-philic/hydrophilic surfactant with brush structure and its application in preparing monolithic material

Zhang,

Bian,

Yang

2023

Preprint

View full text Add to dashboard Cite

A new strategy was developed to build a CO2-philic/hydrophilic surfactant by combining the common free radical polymerization and the grafting modification technology, and a brush polymer was synthesized with poly(vinyl acetate)-based copolymer as the CO2-philic group (as the main chain) and the methoxy polyethylene glycols (MPEG) as the hydrophilic part (as the branched chain) (PVAc-g-MPEG). The CO2-philic ability can be controlled by adjusting the chain length of the PVAc fragment. The results indicate that PVAc-g-MPEG has excellent surfactant activity, and can emulsify the CO2/H2O system to obtain the CO2-in-water (C/W) high interval phase emulsion (HIPE 80%, v/v), which can remain stable for more than 20 hours. If using the monomers/crosslinking agent solution instead of water, the highly porous monolithic materials will be obtained after the continuous phase is polymerized. In this paper, polyacrylamide (PAM) and poly(acrylamide/diethyl aminoethyl methacrylate)-based porous monolithic materials(PADM) were prepared. These materials were used to separate the protein (BSA as the model matter) from the solution, and the results indicated that PAM-based porous monolithic materials had almost no enrichment capacity for protein, while PADM-based porous monolithic materials can adsorb BSA up to 129.3 mg/g.

show abstract

Controllable synthesis of CO₂‐based poly(carbonate‐ether)diols catalyzed by Salen–cobalt complex

Cited by 3 publications

References 39 publications

Efficient and Scalable Synthesis of CO₂‐Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent

Efficient and Scalable Synthesis of CO₂‐Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent

Synthesis of CO2-philic/hydrophilic surfactant with brush structure and its application in preparing monolithic materials

Synthesis of CO2-philic/hydrophilic surfactant with brush structure and its application in preparing monolithic material

Contact Info

Product

Resources

About

Controllable synthesis of CO2‐based poly(carbonate‐ether)diols catalyzed by Salen–cobalt complex

Cited by 3 publications

References 39 publications

Efficient and Scalable Synthesis of CO2‐Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent

Efficient and Scalable Synthesis of CO2‐Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent

Synthesis of CO2-philic/hydrophilic surfactant with brush structure and its application in preparing monolithic materials

Synthesis of CO2-philic/hydrophilic surfactant with brush structure and its application in preparing monolithic material

Contact Info

Product

Resources

About

Controllable synthesis of CO₂‐based poly(carbonate‐ether)diols catalyzed by Salen–cobalt complex

Efficient and Scalable Synthesis of CO₂‐Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent

Efficient and Scalable Synthesis of CO₂‐Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent