摘要：本发明提供了一种氯磺化聚丙撑碳酸酯，具有式I所示的结构。与现有的聚丙撑碳酸酯以及氯化聚丙撑碳酸酯相比，本发明设计得到了具有特定结构的氯磺化聚丙撑碳酸酯，由于磺酰基团和氯元素的共同作用，电负性极大增强，吸电子能力急剧提高，使其能够与其他材料有更好的相互作用，从而可应用于粘合剂、不干胶、涂料等领域。本发明在聚丙撑碳酸酯分子链上引入高活性的氯磺酰活性基团，可以实现不同程度地降低终产物的分子量，有效调控聚丙撑碳酸酯与不同基材的界面相容性，从而改变产品形态和粘度。同时该氯磺化聚丙撑碳酸酯还是一种全生物降解材料。

Abstract:The invention provides a chlorosulfonated poly(propylene carbonate) with the structure shown in Formula I. Compared with existing poly(propylene carbonate) and chlorinated poly(propylene carbonate), the chlorosulfonated poly(propylene carbonate) with a specific structure designed in this invention has significantly enhanced electronegativity and sharply improved electron-withdrawing ability due to the combined effect of sulfonyl groups and chlorine elements. This enables better interaction with other materials, allowing its application in fields such as adhesives, pressure-sensitive adhesives, and coatings.By introducing highly reactive chlorosulfonyl active groups into the molecular chain of poly(propylene carbonate), the invention can reduce the molecular weight of the final product to different degrees, effectively regulate the interfacial compatibility between poly(propylene carbonate) and different substrates, thereby modifying the product morphology and viscosity. Meanwhile, the chlorosulfonated poly(propylene carbonate) is also a fully biodegradable material.