Method for improved production of graft polymers
公开了一种通过乳液方法制备ABS型接枝聚合物的方法。在该方法中:在C)95-5重量%的玻璃态转化温度<10℃的一种或多种接枝基质存在下,将含A)50-99重量份的至少一种乙烯基芳族化合物和B)1-50重量份的至少一种共聚物的5-95重量%的单体混合物进行聚合。该方法的改进之处包括在反应期间,连续监测反应混合物的拉曼光谱,测定与指定理想反应过程的偏差并进行相应的调整。 A method for the production of ABS-type graft copolymers by emulsion polymerisation, in which the course of the rea...
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Zusammenfassung: | 公开了一种通过乳液方法制备ABS型接枝聚合物的方法。在该方法中:在C)95-5重量%的玻璃态转化温度<10℃的一种或多种接枝基质存在下,将含A)50-99重量份的至少一种乙烯基芳族化合物和B)1-50重量份的至少一种共聚物的5-95重量%的单体混合物进行聚合。该方法的改进之处包括在反应期间,连续监测反应混合物的拉曼光谱,测定与指定理想反应过程的偏差并进行相应的调整。
A method for the production of ABS-type graft copolymers by emulsion polymerisation, in which the course of the reaction is constantly monitored by Raman spectrometry and corrective measures are taken when the concentration of a monomer deviates from the required value. A method for the production of ABS-type graft copolymers (I) by emulsion polymerisation of 5-95 wt% of a mixture of (A) 50-99 parts by weight (pts. wt.) vinylaromatic(s) and (B) 1-50 pts. wt. comonomer(s) in presence of (C) 95-5 wt% grafting base(s) with a glass transition point (Tg) below 10[deg]C, in which the reaction is constantly monitored by Raman spectrometry and corrective measures are taken when the concentration of a monomer deviates from the required value. |
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