こう分子 ぶんし電解 でんかい しつではありませんでした
kōbunshidenka ishitsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 高分子電解質

1. Was not a polymer electrolyte.; Was not a high molecular weight electrolyte.

Past/Perfective
Negative
Polite
Formal Register