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固体聚合物用于控释装置于50年代首次介绍,60年代已被广泛引进医药领域。聚合物由于链长度与分子量的不同很难精确命名,并有制备技术、加工、灭菌和组分间聚合等问题,但最后产品为轻型、易于处理与成形、有良好通用性,并在重量与机械、化学与物理性能间有较好的平衡。有时需将聚合物加工成具有一定生物功能和结合性能的物质,从而达到靶向给药。聚合物类型聚合物有天然的,亦有合成的。合成方法有热塑法、热固法等。聚合物的热性质决定其成型、纯化、灭菌方法及最后产品的特性。匀聚物、共聚物、三聚物分别由一种单聚物、两
The introduction of solid polymer for controlled release devices was first introduced in the 1950s and in the 1960s it has been widely introduced into the medical field. Polymers, due to differences in chain length and molecular weight, are difficult to name precisely and have problems with preparation techniques, processing, sterilization, and inter-component polymerization, but the final product is lightweight, easy to handle and form, has good versatility and is very low in weight And mechanical, chemical and physical properties have a good balance between. Sometimes the polymer must be processed into a certain biological function and binding properties of substances, so as to achieve the targeted administration. Polymers Polymers are natural and synthetic. Synthetic methods are thermoplastic, thermosetting method. The thermal properties of a polymer determine the characteristics of its shape, purification, sterilization, and final product. Homopolymer, copolymer, terpolymer, respectively, by a single polymer, two