A series of amphiphilic hyperbranched polymers (AHP-s, the “s” refers to the algebra of AHP) were synthesized by the reaction between hydroxyl-terminated hyperbranched polymers (HBP-s, the “s” refers to the algebra of HBP) and palmitoyl chloride. FTIR, NMR and GPC were used to determine the structure of AHP-s, the results showed that AHP-s exhibits core-shell structure. The thermal properties of polymers were investigated by DSC and TGA. It was found that AHP-2, AHP-3 and AHP-4 display higher thermal stability than AHP-1 (AHP-1, AHP-2, AHP-3 and AHP-4 represent the first, second, third and fourth generation AHP, respectively). Furthermore, the self-assembly performance of AHP-s in THF solvent was investigated by TEM and SEM. Finally, the encapsulation capacity of the AHP-s for methyl orange (MO) was explored at different concentrations of AHP-s and pH conditions. It was found that AHP-s is capable of accommodating hydrophilic guest MO. Moreover, the higher generation of AHP-s, the stronger encapsulation capacity obtained. And the encapsulation capacity closely associated with the pH of encapsulation system.

中文翻译：

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两亲性超支化聚合物：合成，表征和自组装性能

通过羟基封端的超支化聚合物（HBP-s，“ s”是指HBP的代数）之间的反应合成了一系列两亲性高支化聚合物（AHP-s，“ s”是指AHP的代数），棕榈酰氯。用FTIR，NMR和GPC确定了AHP-s的结构，结果表明AHP-s具有核-壳结构。用DSC和TGA研究了聚合物的热性能。发现AHP-2，AHP-3和AHP-4显示出比AHP-1更高的热稳定性（AHP-1，AHP-2，AHP-3和AHP-4代表第一，第二，第三和第四代AHP ， 分别）。此外，通过TEM和SEM研究了AHP-s在THF溶剂中的自组装性能。最后，在不同的AHP-s浓度和pH条件下，探索了AHP-s对甲基橙（MO）的包封能力。发现AHP-s能够容纳亲水性客体MO。此外，AHP-s的生成量越高，获得的封装能力越强。而包封能力与包封体系的pH值密切相关。