聚醋酸乙烯邻苯二甲酸酯
中文名称:聚醋酸乙烯邻苯二甲酸酯
英文名称:polyvinylacetate phthalate polymer
CAS号:34481-48-6
分子式:C12H12O6
分子量:252.22
EINECS号:
Mol文件:34481-48-6.mol
聚醋酸乙烯邻苯二甲酸酯 性质
| 溶解度 | Soluble in ethanol and methanol; sparingly soluble in acetone and propan-2-ol; practically insoluble in chloroform, dichloromethane, and water. In buffer solutions, polyvinyl acetate phthalate (200 mg/L) is insoluble below pH 5 and becomes soluble at pH values above 5. Polyvinyl acetate pththalate shows a sharp solubility response with pH; this occurs at pH 4.5–5.0, which is lower than for most other polymers used for enteric coatings. Solubility is also influenced by ionic strength. |
|---|---|
| InChI | InChI=1S/C8H6O4.C4H6O2/c9-7(10)5-3-1-2-4-6(5)8(11)12;1-3-6-4(2)5/h1-4H,(H,9,10)(H,11,12);3H,1H2,2H3 |
| InChIKey | LUJQXGBDWAGQHS-UHFFFAOYSA-N |
| SMILES | C(C1C=CC=CC=1C(=O)O)(=O)O.O(C=C)C(=O)C |
