Abstract A facile method to prepare low-density polyethylene (LDPE)/polystyrene (PS) interpolymer resin particles by swelling suspension polymerization without addition of extra swelling agent was developed. The polymerization temperature, polymerization time, and initiator concentration were investigated. Fourier transform infrared spectroscopy analysis confirmed that the LDPE/PS interpolymer resin particles were successfully prepared and a small amount of PS-g-LDPE existed in the resin. Scanning electron microscopy revealed that PS was uniformly distributed in the LDPE matrix, indicating excellent compatibility between PS and LDPE. The mechanical properties of LDPE/PS interpolymer resin were intermediate between PS and LDPE polymers.

中文翻译：

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通过溶胀悬浮聚合法制备 LDPE/PS 共聚树脂颗粒

摘要 开发了一种在不添加额外溶胀剂的情况下，通过溶胀悬浮聚合制备低密度聚乙烯（LDPE）/聚苯乙烯（PS）共聚树脂颗粒的简便方法。研究了聚合温度、聚合时间和引发剂浓度。傅里叶变换红外光谱分析证实，LDPE/PS共聚树脂颗粒制备成功，树脂中存在少量PS-g-LDPE。扫描电镜显示 PS 均匀分布在 LDPE 基体中，表明 PS 和 LDPE 之间具有良好的相容性。LDPE/PS 共聚树脂的机械性能介于 PS 和 LDPE 聚合物之间。