Polyacetal polymer and its production

Abstract

Abstract PURPOSE: The polymerization of formaldehyde is effected in the presence of a specific compound to produce the polyacetal having polyoxymethylene structure units with one chain terminal blocked with a specific adduct and showing high heat stability, high lubricity and high antistatic property. CONSTITUTION: The polymerization of formaldehyde is conducted in the presence of an alkylene oxide adduct to an alcohol or its esterified product of formula I or II [R 1 , R 3 are H, alkyl, aryl, substituted alkyl, substituted aryl, preferably R 1 is H, R 3 is methyl; R 2 is alkyl, aryl, substituted alkyl, substituted aryl, preferably stearyl or p-octylphenol; m is 2W6, preferably 2; n is 1W1,000, preferably 2W250] to produce a polyacetal with a structure of formula III, in which one chain terminal is blocked and a number-average molecular weight is 10,000W500,000 except the chain terminal group. COPYRIGHT: (C)1982,JPO&Japio

Inventors

• 👤 Kazuhiko Matsuzaki
• 👤 Minoru Hamada
• 👤 Hisaya Sakurai

Bibliographic Details