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Gemini-like rosin segmented polyether sulfonate, preparation method and application thereof

A polyether sulfonate and gemini technology is applied in the field of gemini-like rosin block polyether sulfonate and its preparation and application. and other problems, to achieve the effect of easy control of molecular structure and molecular weight, good steric hindrance and good emulsion stability

Inactive Publication Date: 2010-05-26
南京擎宇化工研究有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN20061004076.1 reported that polystyrene bisphenol A and ethylene oxide are polymerized and then phosphorylated to form a quasi-gemini surfactant, which is applied to the pesticide aqueous emulsion system and has excellent emulsification stability. Phenol A polyoxyethylene ether has dihydroxy functional groups, which cannot control the phosphorylation of mono- or di-esters, nor can it control the occurrence of cross-linking in the system

Method used

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  • Gemini-like rosin segmented polyether sulfonate, preparation method and application thereof
  • Gemini-like rosin segmented polyether sulfonate, preparation method and application thereof
  • Gemini-like rosin segmented polyether sulfonate, preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0026] Add 50 kilograms of masson pine rosin (produced by Guangxi Wuzhou Richeng Forestry Chemical Co., Ltd.) in a 100-liter stainless steel reaction kettle with agitator, constant pressure drop tank, thermometer, and pressure gauge, heat up to 100 ° C and melt, add 7.5 Kilograms of maleic anhydride (15% of rosin) were incubated at 180-190°C for 4 hours to prepare maleic rosin M1, whose analysis softening point reached 116°C;

[0027] Weigh 3.3 kg (9.34 mol) of maleic rosin M1, stir and heat up to 120°C for melting, add 0.21 kg of analytically pure potassium hydroxide, vacuumize and dehydrate for 0.3 hours, and pass through slowly at 120-140°C, 0-0.4MPa Inject 37.9kg (654.3mol) of propylene oxide (PO). After passing through PO, age and absorb to negative pressure, 28.8kg (653.9mol) of After aging and absorbing to negative pressure, the intermediate T1 was obtained, the measured hydroxyl value was 18.1mgKOH / g, and the relative molecular weight was about 7750g / mol;

[0028] Mix...

Embodiment 2

[0030] In the synthesis process of intermediate maleated rosin in embodiment 1, the mass of maleic anhydride charged is 30% of the mass of rosin, and the others remain unchanged. The intermediate maleated rosin M2 is obtained, with a softening point of 142° C., and the liquid chromatographic analysis of maleated rosin Content 68%;

[0031] The temperature of passing through propylene oxide is 155-160°C, and other things remain unchanged, to obtain the polymer surfactant SP-2702 ethylene glycol solution of the present invention;

Embodiment 3

[0033] In embodiment 1, 50 kilograms of filtrates are warmed up to 90~100 ℃, 1.6 kilograms of sodium hydroxide aqueous solution (mass concentration 50%) are added dropwise, micro-vacuum deammonia gas is neutral until the pH value of gas outlet stops, and product is the class of the present invention. Gemini rosin block polyether sulfonate sodium salt polymer surfactant SP-2703 ethylene glycol solution.

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Abstract

The invention discloses a Gemini-like rosin segmented polyether sulfonate, a preparation method thereof and application thereof. The preparation method comprises the following steps: sequentially polymerizing a maleic rosin activated monomer with epoxypropane and oxirane in molar ratios to form a segmented copolymer, taking carbamide as a catalyst, sulfonating the carbamide with an aminosulfonic acid in a molar ratio of 1:0.8-2, dissolving the reaction product with a low-molecular weight and low-viscosity alcohol so as to assist filtration, removing the low-molecular weight alcohol, if necessary, replacing a system ammonium with an alkali to release ammonia gas, and forming a liquefied compound of the sulfonate with good dispersity, emulsibility and stability. The Gemini-like rosin segmented polyether sulfonate of the invention can be applied to a pesticide emulsion in water, a suspension agent in water, a suspension agent in oil, a suspending emulsion, a suspending seed coating and other preparations in which the water is used as a continuous phase, and has the advantages of low production cost, practical and feasible process, environmental protection, no pollution, good application performance and the like.

Description

technical field [0001] The present invention relates to a kind of synthetic with natural rosin as raw material, has the novel anionic macromolecule surfactant of Gemini structure and preparation method thereof, specifically, relates to a kind of Diels produced by natural rosin and maleic anhydride -Alder addition product maleic rosin as raw material, polymerized with propylene oxide and ethylene oxide to form a polymer block copolymer, and then sulfonated with sulfamic acid to form a kind of anionic polymer surface with a similar gemini structure active agent. This type of surfactant is used in pesticide water emulsions, water suspensions, oil suspensions, suspoemulsions, and seed coating suspensions with water as the continuous phase, and can provide excellent emulsification and dispersion stability. Background technique [0002] Pesticide aqueous emulsion or suspension is a metastable system in which water is the continuous phase and organic pesticide is the dispersed pha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/326C08G65/26C09F1/04A01N25/30A01N25/04B01F17/52C09K23/52
Inventor 秦敦忠刘娟王德新
Owner 南京擎宇化工研究有限公司
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