| 摘要 |
A terminally modified polyethylene terephthalate resin which has an intrinsic viscosity of 0.5-1.8 dl/g, a melting point of 245-270°C and a melt viscosity (μ (Pa·s)) at 300°C satisfying formula (A), and wherein 25-80 mol/ton of a compound represented by formula (B) is bonded to an end. μ ≤ 4 × e(0.000085×Mw) formula (A) (The weight average molecular weight (Mw) in this formula represents a weight average molecular weight relative to the molecular weight of standard methyl polymethacrylate as determined by gel permeation chromatography that uses hexafluoroisopropanol (to which 0.005N sodium trifluoroacetate is added) as a mobile phase.) (Formula (B) represents a compound having a (poly)oxyalkylene structure wherein: R1 represents at least one group selected from among alkyl groups having 1-30 carbon atoms, cycloalkyl groups having 6-20 carbon atoms, aryl groups having 6-10 carbon atoms and aralkyl groups having 7-20 carbon atoms; R2 represents a group selected from among a hydroxyl group, a carboxyl group, an amino group, a silanol group and a thiol group; m represents an integer of 1-3; n represents an integer of 1-29; X represents H and/or CH3; Y represents H and/or CH3; and the total number of carbon atoms excluding the carbon atoms in the R1 and R2 moieties is 2-58.) Provided is a terminally modified polyethylene terephthalate resin which has a low melt viscosity. |
