利用原子转移自由基聚合(ATRP)合成具有可控结构的嵌段共聚物PS-b-PtBA,用GPC、1HNMR对产物的分子量及其分布和嵌段组成进行了表征.将产物在酸性条件下水解得到两亲性嵌段共聚物PS-b-PAA,并用FT-IR、1HNMR和滴定分析对水解产物进行表征.用水滴模板法,以该两亲性嵌段共聚物为表面活性剂辅助聚乳酸(PLA)形成有序多孔膜,探讨PAA链长、PS-b-PAA质量分数以及溶液浓度对膜孔形貌的影响,以制备得到的PS-b-PAA/PLA复合多孔膜为模板负载入抗菌剂茶多酚(TP),制备得抗菌性薄膜,结果表明膜孔的有无以及大小会对负载的抗菌剂的量有影响,从而影响薄膜的抗菌性能.
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