機能 きのう せい こう分子 ぶんしではありませんでした
kinō sei kōbunshidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 機能性高分子

1. Was not a functional polymer.; Was not high-performance polymer.

Past/Perfective
Negative
Polite
Formal Register
Chemistry