甲基丙烯酸

例句：

1. 1. The polymer was synthesized using methacrylic acid as the monomer.
   该聚合物是使用甲基丙烯酸单体合成的。
2. 2. The chemical reaction involved the use of methacrylic acid in the production process.
   该化学反应涉及了在生产过程中使用甲基丙烯酸。
3. 3. Methacrylic acid is a commonly used raw material for the production of polyester fibers.
   甲基丙烯酸是生产聚酯纤维常用的原料。