1、不飽和聚酯樹脂：由于順酐含有雙鍵，可以與多種單體如苯乙烯、甲基丙烯酸甲酯等進行加成反應，生成高分子化合物。通過精確的配方和工藝控制，可以得到各種性能要求的不飽和聚酯樹脂，廣泛應用于涂料、粘合劑、玻璃鋼等領域。

1. Unsaturated polyester resin: Due to the presence of double bonds in maleic anhydride, it can undergo addition reactions with various monomers such as styrene and methyl methacrylate to form polymer compounds. Through precise formulation and process control, unsaturated polyester resins with various performance requirements can be obtained, which are widely used in fields such as coatings, adhesives, and fiberglass reinforced plastic.

2、溶劑和引發劑：順酐的化學性質使其可以用作溶劑，它能溶解多種物質，特別是一些難以溶解的物質。此外，由于其引發聚合反應的特性，它還可以用作引發劑，如用于引發丙烯酸酯等單體的聚合。

2. Solvent and initiator: The chemical properties of maleic anhydride make it suitable for use as a solvent, as it can dissolve various substances, especially those that are difficult to dissolve. In addition, due to its ability to initiate polymerization reactions, it can also be used as an initiator, such as for initiating the polymerization of monomers such as acrylic esters.

3、塑料添加劑：在塑料加工中，順酐可以作為添加劑，改善塑料的加工性能、耐熱性、耐化學腐蝕性等。通過與其他添加劑的配合使用，可以制造出性能的塑料產品。

3. Plastic additives: In plastic processing, maleic anhydride can be used as an additive to improve the processing performance, heat resistance, chemical corrosion resistance, and other properties of plastics. By combining with other additives, high-performance plastic products can be manufactured.

4、醫藥合成：在醫藥行業中，順酐是藥物合成的關鍵原料之一。它可以合成多種藥物，如維生素A、D等，為人類的健康做出了貢獻。此外，順酐還用于合成一些抗生素和藥等。

4. Pharmaceutical synthesis: In the pharmaceutical industry, maleic anhydride is one of the key raw materials for drug synthesis. It can synthesize various drugs such as vitamin A, D, etc., making contributions to human health. In addition, maleic anhydride is also used to synthesize some antibiotics and anti-inflammatory drugs.

5、其他化工產品：除了上述應用外，順酐還可以用作香料、農藥、染料等化工產品的原料。通過與其他化合物的反應，可以制造出各種精細化工產品。

5. Other chemical products: In addition to the above applications, maleic anhydride can also be used as a raw material for the production of chemical products such as spices, pesticides, dyes, etc. By reacting with other compounds, various fine chemical products can be manufactured.

然而，需要注意的是，順酐是一種有毒物質，長期接觸或誤用可能對健康造成影響。因此，在操作順酐時應采取嚴格的防護措施，確保工作人員的與健康。同時，為了確保順酐的應用效果和性，建議在人員的指導下進行相關操作。

However, it should be noted that maleic anhydride is a toxic substance, and long-term exposure or misuse may have an impact on health. Therefore, strict protective measures should be taken when operating maleic anhydride to ensure the safety and health of workers. At the same time, in order to ensure the application effect and safety of maleic anhydride, it is recommended to carry out relevant operations under the guidance of professionals.