In addition, both the Department of Polymer Science and the Department of Materials Chemistry are related to chemistry.
Chemistry department is a general major with a wide range of employment, but relatively speaking, there is great competition and few development opportunities.
The Department of Materials Chemistry of the Department of Polymer Science is in great demand at present, such as automobiles, medical devices and special materials. In particular, the Department of Materials Chemistry is a marginal discipline with many development opportunities.
So I think the department of polymer science and the department of material chemistry are better.