A tetrapolymer of itaconate ester and its preparation method and bio-based oil-resistant rubber composition
A quaternary copolymer, itaconic acid ester technology, applied in the field of synthetic rubber, can solve problems such as unsustainability
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Embodiment 1
[0039] Preparation of bio-based oil-resistant rubber based on low-temperature emulsion polymerization, specifically:
[0040] In a 250ml flask, add 150g deionized water, 2.6g sodium dodecylbenzenesulfonate, 6g reducing system aqueous solution (0.1g sodium formaldehyde sulfoxylate, 0.2g sodium iron ethylenediaminetetraacetate), and pass through N 2 The air atmosphere was replaced with a nitrogen atmosphere three times, and a mixture of 25 g of diethyl itaconate, 20 g of butyl acrylate, 5 g of ethyl acrylate, and 1 g of glycidyl methacrylate was poured into the flask, and a glass stopper was placed on it. Stirring was performed at 400r / min. After pre-emulsification at 20° C. for 1 hour, the initiator tert-butyl hydroperoxide (0.05 wt % of the total monomer) was injected into the flask, and reacted at 30° C. for 8 hours. After the polymerization was completed, 0.2 g of hydroxylamine as a terminator was injected into the flask to obtain a latex. The latex is flocculated with eth...
Embodiment 2
[0044] Preparation of bio-based oil-resistant rubber based on low-temperature emulsion polymerization, specifically:
[0045] In a 250ml flask, add 150g of deionized water, 2.6g of sodium dodecylbenzenesulfonate, and 6g of the aqueous solution of the reducing system, and pass through N 2 The air atmosphere was replaced with a nitrogen atmosphere three times, and a mixture of 20 g of diethyl itaconate, 20 g of butyl acrylate, 10 g of ethyl acrylate, and 1 g of glycidyl methacrylate was poured into the flask, and a glass stopper was placed on it. Stirring was performed at 400r / min. After pre-emulsification at 20° C. for 1 hour, the initiator tert-butyl hydroperoxide (0.05 wt % of the total monomer) was injected into the flask, and reacted at 30° C. for 8 hours. After the polymerization was completed, 0.2 g of hydroxylamine as a terminator was injected into the flask to obtain a latex. The latex is flocculated with ethanol to obtain flocculated gel. The flocculated gel is washe...
Embodiment 3
[0049] Preparation of bio-based oil-resistant rubber based on low-temperature emulsion polymerization, specifically:
[0050] In a 250ml flask, add 150g of deionized water, 2.6g of sodium dodecylbenzenesulfonate, and 6g of the aqueous solution of the reducing system, and pass through N 2 The air atmosphere was replaced with a nitrogen atmosphere three times, and a mixture of 15 g of diethyl itaconate, 20 g of butyl acrylate, 15 g of ethyl acrylate, and 1 g of glycidyl methacrylate was poured into the flask, and a glass stopper was placed on it. Stirring was performed at 400r / min. After pre-emulsification at 20° C. for 1 hour, the initiator tert-butyl hydroperoxide (0.05 wt % of the total monomer) was injected into the flask, and reacted at 30° C. for 8 hours. After the polymerization was completed, 0.2 g of hydroxylamine as a terminator was injected into the flask to obtain a latex. The latex is flocculated with ethanol to obtain flocculated gel. The flocculated gel is washe...
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