Fatty Alcohol Polyether Amine Polyether Preparation
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Solution Overview
Problem
The existing methods for preparing surfactants face challenges such as raw material shortages, environmental pollution, and limited application range, particularly for traditional polyether amines like ethylene glycol polyether amines and trimethylolpropane polyether amines, which are not environmentally friendly and deplete petroleum resources.
Innovation Solution
A novel preparation method for a fatty alcohol polyether amine polyether using natural fatty alcohols, involving polymerization reactions with epoxy compounds and hydroamination with liquid ammonia, resulting in a product with enhanced water solubility and permeability, and the ability to form quaternary ammonium salt intermediate products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional polyether amines (ethylene glycol polyether amine, trimethylolpropane polyether amine) are used, then they have been widely applied in polyurethane industry, but they cause raw material shortage and environmental pollution
Solution Approach 1:
The patent changes the chemical structure parameters by using fatty alcohol polyether amine instead of traditional polyether amines, transforming the molecular composition to achieve both environmental friendliness and industrial applicability. This structural parameter change enables the product to maintain versatility while eliminating harmful environmental factors.
Solution Approach 2:
The patent converts the potential harm of petroleum-based raw materials into benefit by using renewable fatty alcohol resources. The fatty alcohol polyether amine structure transforms the previously harmful environmental impact into an environmentally friendly product that maintains industrial utility while eliminating pollution.
2Productivity
If traditional polyether amines are used, then they have large consumption in polyurethane industry, but they deplete petroleum resources
Solution Approach 1:
The patent changes the resource base parameter from petroleum-based to renewable fatty alcohol-based. This parameter change allows the industry to maintain high consumption volumes and productivity while eliminating the depletion of non-renewable petroleum resources through sustainable alternative materials.
Solution Approach 2:
The patent converts the harmful effect of petroleum resource depletion into benefit by substituting with renewable fatty alcohol resources. The fatty alcohol polyether amine structure enables continuous production without depleting finite petroleum resources, transforming a harmful resource consumption pattern into a sustainable one.
3Object-affected harmful factors
If fatty alcohol polyether amine is used, then it has natural effect and mildness, but it lacks water solubility and permeability
Solution Approach 1:
The patent creates a composite molecular structure by combining fatty alcohol polyether amine with epoxy compounds through polymerization. This composite approach integrates the mildness and natural properties of fatty alcohol polyether amine with the water solubility and permeability provided by the epoxy compound modifications, achieving both low skin stimulation and high water solubility.
Solution Approach 2:
The patent achieves multi-functionality by designing the fatty alcohol polyether amine polyether structure to simultaneously provide mildness, water solubility, and permeability. This universal structure enables the product to fulfill multiple requirements including low skin stimulation and high water solubility that were previously conflicting properties.
4Manufacturing precision
If fatty alcohol polyether amine polyether is prepared through multiple reaction steps, then it achieves high tertiary amine rate, but the preparation process becomes complex
Solution Approach 1:
The patent segments the preparation process into distinct modular steps: first polymerization of fatty alcohol with epoxy compound, then hydroamination with liquid ammonia, and finally second polymerization. This segmentation allows each step to be optimized independently, achieving high tertiary amine rate while maintaining manageable process complexity through systematic division of operations.
Solution Approach 2:
The patent applies preliminary action by performing the first polymerization reaction to create the polyether backbone before introducing the amine functionality through hydroamination. This preliminary structural formation enables subsequent precise control of the amine group configuration, achieving high tertiary amine rate while organizing the complex process into logical sequential steps.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The fatty alcohol polyether amine polyether exhibits improved properties like high tertiary amine rate, wide industrial applications, safety, biodegradability, and environmental friendliness, suitable for various industries including agriculture, medicine, and petrochemicals, with a tertiary amine rate higher than 98.0% and high conversion rates.
Implementation Method 1
Surfactants have fixed hydrophilic and oleophilic groups which are directionally arranged on the surface of a solution and are capable of obviously reducing the surface tension
Implementation Method 2
taking a polymerization reaction between the fatty alcohol polyether amine and a second epoxy compound to obtain the fatty alcohol polyether amine polyether
Implementation Method 3
taking a hydroamination reaction between the fatty alcohol polyether and liquid ammonia to obtain a fatty alcohol polyether amine
Data Source
AI summary
The disclosure belongs to the technical field of organic macromolecule compound preparation, and discloses a fatty alcohol polyether amine polyether and a preparation method and application thereof. The method includes: using a fatty alcohol as an initiator, and adding a first epoxy compound for a polymerization reaction to obtain a fatty alcohol polyether; then, taking a hydroamination reaction between the fatty alcohol polyether and liquid ammonia to obtain a fatty alcohol polyether amine; and finally, taking a polymerization reaction between the fatty alcohol polyether amine and a second epoxy compound to obtain the fatty alcohol polyether amine polyether. The fatty alcohol polyether amine polyether prepared by the disclosure has the advantages of safety, nontoxicity, no skin stimulation, biodegradability, high compatibility, green and environmental-friendly effects, etc., and can be used for preparing quaternary ammonium salt intermediate products and various industrial solvents.