以大孔高比表面聚苯乙烯树脂为载体合成了一种高分子负载型钯催化剂.利用XPS、XRD、TGA、DTG和氮气吸附仪等对其进行了表征.结果表明,钯在载体表面呈高度分散状态,所制备的负载型催化剂在室温至200℃范围内有很好的热稳定性.该负载型催化剂在空气氛围中只需较少的催化剂用量就能较好地催化丙烯酸与芳基碘的Heck反应,较高产率地生成取代的反式肉桂酸.该高分子催化剂使用多次后仍具有较好的催化活性.
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