Ferulic acid (FA) (3-methoxy-4-hydroxy-cinnamic acid) is obtained from biowaste such as bran of rice, wheat and maize. It possesses tremendous potential for making polymers suited to specialty applications. This manuscript describes the use of FA directly to produce functional polymers useful for making aqueous dispersions, films and other materials with multifunctional characteristics. pH responsive polymers were also prepared for the first time by using off-the-shelf reagents in one step. In the case of pH responsive polymers the absorption maximum (λ_max) varied with pH of the medium. The pH responsive polymers were further modified to zwitterioninc polymers and UV absorbing polymeric quaternary ammonium salts. Zwitterionic polymers dispersed well in water. Hydrolytic studies in phosphate buffer indicated that the stability of polymers depended on the chemical structure. The polymers are potentially useful as UV absorbing films and biorenewable multifunctional materials.

阿魏酸（FA）（3-甲氧基-4-羟基肉桂酸）得自生物废物，例如大米，小麦和玉米的麸皮。它具有制造适合特殊应用的聚合物的巨大潜力。该手稿描述了直接使用FA生产可用于制备水性分散液，薄膜和其他具有多功能特性的材料的功能聚合物的方法。通过一步使用现成的试剂，首次制备了对p H敏感的聚合物。在p的情况下ħ响应聚合物的吸收最大值（λ_最大与对变化）ħ介质。在P ^ h将响应性聚合物进一步改性为两性离子聚合物和吸收紫外线的聚合物季铵盐。两性离子聚合物很好地分散在水中。在磷酸盐缓冲液中的水解研究表明，聚合物的稳定性取决于化学结构。该聚合物潜在地可用作紫外线吸收膜和生物可更新的多功能材料。