Synthesis method of novel hyperbranched polyether based on sucrose as substrate

Abstract

The invention discloses a synthesis method of novel hyperbranched polyether based on sucrose as a substrate, and relates to the field of hyperbranched polyether synthesis. A reaction kettle is involved. The synthesis method comprises the following steps: (1) adding sucrose, a catalyst 1 and glycidyl ether into the reaction kettle; (2) vacuumizing the system obtained in step (1), and heating to react; (3) releasing vacuum in step (2), adding reactants, and heating for a reaction; and (4) pressing an end-capping reagent into the system obtained in step (3), adding a catalyst 2, and carrying outa cooling reaction. A bio-based material and a derivative thereof are used as substrates to synthesize the hyperbranched polyether, and nonylphenol series products which are not environment-friendly and have environmental hormone properties can be replaced.

Description

technical field [0001] The invention relates to the field of hyperbranched polyether synthesis, in particular to a method for synthesizing a novel hyperbranched polyether based on sucrose as a substrate. Background technique [0002] At present, my country's surfactant synthesis market is in the process of low-end production capacity and insufficient high-end research and development. There is an urgent need to develop new products and new methods. Traditional surfactants are petrochemical raw materials headed by nonylphenol and fatty alcohols such as lauryl alcohol and nutmeg. Alcohol-based, the former is a well-known environmental hormone, the latter can not replace the former. [0003] Ordinary polyether polyols are based on glycerin, propylene glycol, ethylene glycol and other raw materials as substrates with different functionalities, and under the action of acidic or basic catalysts, ethylene oxide or propylene oxide is ring-opened and chain-growth , thus synthesizing ...

AI Technical Summary

Problems solved by technology

[0002] At present, my country's surfactant synthesis market is in the process of low-end production capacity and insufficient high-end research and development. There is an urgent need to develop new products and new methods. Traditional surfactants are petrochemical raw materials headed by nonylphenol and fatty alcohols such as lauryl alcohol and nutmeg. alcohol, the former is a well-known environmental hormone, and the latter cannot replace the former

[0003] Ordinary polyether polyols are based on glycerin, propylene glycol, ethylene glycol and other raw materials as substrates with different functionalities, and under the action of acidic or basic catalysts, ethylene oxide or propylene oxide is ring-opened and chain-growth , so as to synthesize a series of nonionic surfactants with different functionalities, the process is cumbersome