Monovinylarene-conjugated diene copolymer composition and polymerization method and polymer prepared by the method
A monovinylarene and conjugated diene technology, applied in the field of monovinylarene-conjugated diene copolymer composition, can solve the problems of low elongation, poor impact resistance and the like, and achieve high elongation at break rate, excellent impact resistance, easy to control effect
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Embodiment 1
[0106] In a 5-liter stainless steel stirred tank, under the protection of high-purity nitrogen, add 2000g of raffinate (commercially purchased from the Synthetic Rubber Factory of Sinopec Yanshan Branch) and 265g of styrene, add 2.9mmol of n-butyllithium at a temperature of 55 ° C to initiate 9.5 mmol n-butyllithium was added to the reaction system for the second time, followed by 115 g of styrene, and the reaction was carried out at 70 °C for 10 minutes; the third time was added to the polymerization system 2.9mmol n-butyllithium, then add 120g butadiene, react at 70°C for 30 minutes to obtain a glue solution containing conjugated diene polymer, and take samples for GPC analysis after each reaction is completed, the results are in Table 1 Shows.
[0107] Add 1.8g epoxidized soybean oil (commercially available from Shandong Qingzhou Hongyida Industry and Trade Co., Ltd., epoxy value is 6mol / 100g, and average molecular weight is 1000) to the obtained glue solution, and couple a...
Embodiment 2
[0110] In a 5-liter stainless steel stirred kettle, under the protection of high-purity nitrogen, add 2000g of cyclohexane (commercially available from Sinopec Yanshan Branch Synthetic Rubber Factory) and 265g of styrene, add 3.8mmol of n-butyllithium at a temperature of 50°C to initiate 10.5 mmol n-butyllithium was added to the reaction system for the second time, followed by 115 g of styrene, and the reaction was carried out at 60 °C for 30 minutes; the third time was added to the polymerization system 2.8mmol n-butyllithium, then add 120g isoprene, react at 60°C for 50 minutes to obtain a glue solution containing conjugated diene polymer, and take samples for GPC analysis after each reaction is completed, the results are in Table 1 shown in.
[0111] Add 1.8g epoxidized soybean oil (commercially available from Shandong Qingzhou Hongyida Industry and Trade Co., Ltd., epoxy value is 6mol / 100g, and average molecular weight is 1000) to the obtained glue solution, and couple at ...
Embodiment 3
[0114] In a 5-liter stainless steel stirred kettle, under the protection of high-purity nitrogen, add 2000g of raffinate (commercially purchased from the Synthetic Rubber Factory of Sinopec Yanshan Branch) and 285g of styrene, add 2.4mmol of n-butyllithium at a temperature of 55 ° C to initiate 15 minutes with a circulating water bath at 70 °C; for the second time, 6.8 mmol n-butyllithium was added to the reaction system, followed by 95 g of styrene, and the reaction was carried out at 70 °C for 15 minutes; the third time to polymerize Add 0.8mmol n-butyllithium to the system, then add 120g butadiene, react at 70°C for 50 minutes to obtain a glue solution containing conjugated diene polymer, and take samples for GPC analysis after each reaction is completed , the results are shown in Table 1.
[0115] Add 1.8g epoxidized soybean oil (commercially available from Shandong Qingzhou Hongyida Industry and Trade Co., Ltd., epoxy value is 6mol / 100g, and average molecular weight is 10...
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