设计并合成了含有核酸碱基腺嘌呤的双亲聚合物,聚[聚乙二醇600-5-氧-(6-腺嘌呤代己烷基)-异酞酸酯](PPEAHI),研究了其在水溶液中的自组织行为,SEM观测了该聚合物在水溶液中的聚集形态,表明PPEAHI在水溶液中自组织成纳米球.将纳米球水溶液冻干后,用FFIR研究了PPEAHI聚合物上的腺嘌呤与底物胸腺嘧啶间的相互作用,结果表明受体与底物的互补基团间形成了氢键,发生了分子识别,并用变温红外光谱进一步证实了氢键的形成.
An amphiphilie polymer containing adenine, poly [ ( polyoxyethylene-600 ) -oxy-5- [ 6- ( 1 -adenine ) hexyl] isophthaloyl(PPEAHI) , was synthesized. The self-organized behavior of the amphiphilie polymer in dilute aqueous solution was studied. The morphology of the aggregates was observed via SEM. The result indi- cates that the amphiphilic PPEAHI polymer is self-organized into nanospheres in dilute aqueous solution. The molecular recognition between adenine in PPEAHI polymer and thymine substrate was studied via FTIR, which implied that the hydrogen bonds were formed between complemenntary groups. The formation of H-bonds was further confirmed by variable temperature FTIR.