Oligo−/polylactides functionalized with p-tert-butylthiacalix[4]arenes in three conformations (cone, partial cone, 1,3-alternate) were synthesized by ring-opening polymerization. Conformational isomers of p-tert-butylthiacalix[4]arene tetrapropanolamide derivatives differing in relative position of hydroxyl groups were introduced into reaction with l-lactide in presence of catalytic amounts of tin (II) octoate in DMSO and 1,2-dimethylbenzene. It was shown that oligo−/polyester molecular weight depends on macrocycle's conformation and solvent used for l-lactide ROP. Highest molecular weight was achieved for 1,3-alternate conformation and 1,2-dimethylbenzene, while on the contrary in DMSO higher molecular weight was achieved for cone stereoisomer. Regardless molecular weight of oligo−/polylactides synthesized, 1,3-alternate stereoisomer derivatives are characterized by higher thermal stability, indicating that the relative position of oligo−/polylactides fragments, which are pre-oriented by cyclophane core is the key factor determining thermal stability of oligo−/polylactides synthesized. Modification of polyesters with thiacalixarene fragment bestows them with sorption activity towards rhodamine 6G in contrast to non-modified polylactide.

通过开环聚合反应合成了三种构象（圆锥，部分圆锥，1,3-交替构象）的对叔丁基硫杂杯[4]芳烃功能化的寡聚乳酸。在催化量的辛酸锡（II）在DMSO和1,2-二甲基苯中存在的情况下，将羟基相对位置不同的对叔丁基硫杂杯[4]亚芳基四丙醇酰胺衍生物的构象异构体引入1-丙交酯反应。结果表明，低聚物/聚酯的分子量取决于大环的构象和用于1-丙交酯ROP的溶剂。1,3-替代物的分子量最高构象和1,2-二甲基苯，而相反，在DMSO中，锥型立体异构体的分子量更高。不论合成的寡聚/聚丙交酯的分子量如何，其1,3-交替立体异构体衍生物均具有较高的热稳定性，这表明由环烷核预取向的寡聚/聚丙交酯片段的相对位置是决定热敏性的关键因素合成的寡聚/聚丙交酯的稳定性。与未改性的聚丙交酯相比，用噻唑烷芳烃片段改性的聚酯赋予它们对若丹明6G的吸附活性。