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发明公开
CN105623133A 双向拉伸聚苯乙烯组合物、制备方法及应用 有权

双向拉伸聚苯乙烯组合物、制备方法及应用
摘要：
本发明涉及一种双向拉伸聚苯乙烯组合物、制备方法及应用。所述双向拉伸聚苯乙烯组合物包含聚苯乙烯和聚苯乙烯接枝顺丁橡胶，在所述聚苯乙烯组合物中，顺丁橡胶单元的含量占苯乙烯单元的含量的0.1～1wt％。所述组合物的制备方法包括步骤1)，将所述顺丁橡胶溶解于苯乙烯单体中；步骤2)，通过热引发或者引发剂引发苯乙烯单体自身聚合以及在顺丁橡胶上接枝；步骤3)，聚合结束后，脱除多余的苯乙烯单体，得到所述双向拉伸聚苯乙烯组合物。该双向拉伸聚苯乙烯组合物可作为双向拉伸聚苯乙烯片材和薄膜的基材，无需在加工过程中加入增韧剂，具有工业应用前景。
摘要（英）：

The invention relates to a biaxial oriented polystyrene composition, a preparation method therefor and application of the biaxial oriented polystyrene composition. The biaxial oriented polystyrene composition contains polystyrene and polystyrene grafted cis-polybutadiene rubber, wherein in the polystyrene composition, the content of a cis-polybutadiene rubber unit is 0.1-1wt% that of a styrene unit. The preparation method for the composition comprises the steps: (1) dissolving the cis-polybutadiene rubber into styrene monomers; (2) initiating the self polymerization of the styrene monomers and the grafting of the styrene monomers to the cis-polybutadiene rubber through thermal initiation or by an initiator; and (3) after the polymerization ends, removing superfluous styrene monomers, thereby obtaining the biaxial oriented polystyrene composition. The biaxial oriented polystyrene composition can serve as a base material of biaxial oriented polystyrene sheets and films, and a toughening agent is not required to be added during processing, so that the biaxial oriented polystyrene composition has an industrial application prospect.

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