| 摘要 |
<p>The color stability of 1,3-dihydroxybenzene dicarboxylate polyarylates, especially resorcinol isophthalate/terephthalate polyarylates, is enhanced by combination with at least one photobleachable 4-aminocinnamic compound such as 4-dimethylaminocinnamaldehyde. The latter absorbs radiation in the range of about 360-390 nm, balancing the radiation absorbed by hydroxybenzophenone moieties formed in the polyarylate.</p> |
