Preparation and application of a hyperbranched organosilicon polymer
A silicone and polymer technology, which is applied in the field of preparation of hyperbranched silicone resin, can solve problems such as poor heat resistance, easy sliding, and flow, and achieve the effects of cost control, easy availability of raw materials, and improved heat resistance
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Embodiment approach 1
[0023] (1) Weigh 100.00g of amino-terminated silicone oil and 2.96g of phthalic anhydride into a four-necked bottle, add 100ml of absolute ethanol, heat to 80°C, and reflux the ethanol for 24 hours. After the reaction, distill off the ethanol and keep it for later use;
[0024] (2) Put 20.00g of the product of the first step into another four-necked flask, add 0.54g of trimethylolpropane, and add 0.10g of p-toluenesulfonic acid, heat to 140°C, react under reduced pressure for 6h, continue Add 80.00g of the first step product, and react under reduced pressure for 6h to obtain the first generation of hyperbranched organosilicon;
[0025] (3) Take a certain amount of non-curing rubber asphalt waterproof coating and add it to the crucible, add the first-generation hyperbranched silicone with a mass fraction of 5%, heat and melt it, and then apply it to an aluminum plate with a length, width, and thickness of 100mm*50mm*2mm Cool for 24 hours, then treat in an oven at an angle of 45...
Embodiment approach 2
[0027] (1) Weigh 200.00g of amino-terminated silicone oil and 5.92g of phthalic anhydride into a four-neck bottle, add 200ml of absolute ethanol, heat to 80°C, reflux the ethanol for 24 hours, evaporate the ethanol after the reaction and save it for later use;
[0028] (2) Put 10.00g of the product of the first step into another four-necked flask, add 0.27g of trimethylolpropane, and add 0.05g of p-toluenesulfonic acid, heat to 140°C, react under reduced pressure for 6h, continue Add 40.00 g of the first step product and 0.20 g of p-toluenesulfonic acid, and react under reduced pressure for 6 hours, then add 0.54 g of trimethylolpropane, 80.00 g of the first step product, 0.40 g of p-toluenesulfonic acid, and react under reduced pressure for 6 hours to obtain The second generation hyperbranched silicone;
[0029] (3) Take a certain amount of non-curing rubber asphalt waterproof coating and add it to the crucible, add the second-generation hyperbranched silicone with a mass fra...
Embodiment approach 3
[0031] (1) Weigh 200.00g of amino-terminated silicone oil and 5.92g of phthalic anhydride into a four-neck bottle, add 200ml of absolute ethanol, heat to 80°C, reflux the ethanol for 24 hours, evaporate the ethanol after the reaction and save it for later use;
[0032] (2) Put 10.00g of the product of the first step into another four-necked flask, add 0.27g of trimethylolpropane, and add 0.05g of p-toluenesulfonic acid, heat to 140°C, react under reduced pressure for 6h, continue Add 40.00 g of the first step product and 0.20 g of p-toluenesulfonic acid, react under reduced pressure for 6 hours, then add 0.54 g of trimethylolpropane, 80.00 g of the first step product, 0.40 g of p-toluenesulfonic acid, and react under reduced pressure for 6 hours, Then add 1.08g of trimethylolpropane and 160.00g of the first step product, 0.80g of p-toluenesulfonic acid, and react under reduced pressure for 6h to obtain the third-generation hyperbranched organosilicon;
[0033] (3) Take a certa...
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