| 摘要 |
<p>A diallyl terephthalate prepolymer consisting essentially of diallyl terephthalate monomer units, having a) 10 or less of the monomer units in the carbon-carbon bonded molecular chain portion which is composed of the allyl groups of the monomer units, and either b) an unsaturation in a range of from 40 to 70, as represented by an iodine value determined by the Wijs method, c) a number-average molecular weight in a range of from 6,000 to 10,000 as polystyrene, and a weight-average molecular weight in a range of from 10,000 to 70,000 as polystyrene, both being determined by gel permeation chromatography, and d) a melt viscosity in a range of from 30,000 to 90,000 CP at 170 DEG C, as determined by a Koka flow tester, or b) an unsaturation in a range of from 50 to 80, as represented by an iodine value determined by the Wijs method, c) a number-average molecular weight in a range of from 8,000 to 20,000 as polystyrene, and a weight-average molecular weight in a range of from 30,000 to 90,000 as polystyrene, both being determined by gel permeation chromatography, and d) a melt viscosity in a range of from 20,000 to 90,000 CP at 130 DEG C, as determined by a Koka flow tester. ,</p> |
