| 摘要 |
PURPOSE:To obtain a sulfur-contg. polymer which has a high refractive index and an excellent heat resistance and is suitable for applications such as an optical lens, a phase difference plate, an antireflection film, and a permselective membrane. CONSTITUTION:A sulfur-contg. polymer having a wt.-average mol.wt. of 10,000 or higher is produced from 40-55mol% dithiol of the formula (wherein R<1> and R<2> are each H, 1-3C alkyl, 1-3C alkoxy, phenyl, hydroxyl, Cl, or Br provided they may be the same or different from each other; and n is an integer of 1-3) and 60-45mol% diviny1 compds. comprising 10-90mol% divinylbenzene and 90-10mol% arom. diacrylate. |
