Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Polyacetal copolymer

Polyacetal copolymer bPolyphenylene oxide copolymer Unplasticized PVC Plasticized PVC... [Pg.38]

Synonyms Acetal resin Polyacetal Polyacetal copolymer Polyacetal resin Polyfonnaldehyde Polyot methylene copolymer POM Classification Thermoplastic polymer... [Pg.957]

Polu-U. See Molybdenum trioxide Poly 25 NR. See Polyethylene, medium density Poly THF . See Pol etrahydrofuran Polyace 573. See Ethylene/MA copolymer Polyacetal Polyacetal copolymer. See Acetal copolymer... [Pg.3424]

Poly(oxymethylene), with the monomeric unit -(rCUiO, can be produced from formaldehyde, HCHO, or its cyclic trimer, trioxane (1,3,5-trioxacyclohexane). The commerical polymer obtained from formaldehyde is also known as polyacetal homopolymer, and that from trioxane is known as polyacetal copolymer. [Pg.446]

The improved thermal and chemical stability of the copolymer vs. the homopolymer is a result of randomly distributed oxyethylene groups, which is circled in Figure 3.26. All poly acetals are subject to oxidative and acidic degradation, which leads to molecular weight decline. Deterioration in the copolymer ceases, however, when one of the randomly distributed oxyethylene linkages is reached. These groups offer stability to oxidative, thermal, acidic, and alkaline attack. The raw copolymer is hydrolyzed to an oxyethylene end cap to provide thermally stable polyacetal copolymer. [Pg.91]

Inpital, Polyacetal (copolymer), Mitsubishi Gas Chemical America, Inc. [Pg.914]


See other pages where Polyacetal copolymer is mentioned: [Pg.331]    [Pg.331]    [Pg.271]    [Pg.641]    [Pg.222]    [Pg.959]    [Pg.959]    [Pg.1133]    [Pg.1135]    [Pg.1211]    [Pg.1211]    [Pg.1211]    [Pg.1233]    [Pg.1233]    [Pg.1234]    [Pg.1235]    [Pg.1235]    [Pg.1239]    [Pg.1239]    [Pg.1240]    [Pg.1266]    [Pg.1266]    [Pg.1266]    [Pg.1269]    [Pg.1270]    [Pg.1270]    [Pg.1270]    [Pg.1279]    [Pg.1279]    [Pg.1279]    [Pg.1298]    [Pg.1298]    [Pg.1299]    [Pg.1322]    [Pg.1323]    [Pg.1323]    [Pg.1325]    [Pg.1325]    [Pg.1325]    [Pg.1351]    [Pg.1351]    [Pg.1351]    [Pg.1369]   
See also in sourсe #XX -- [ Pg.115 , Pg.116 , Pg.117 , Pg.118 , Pg.119 , Pg.120 , Pg.121 , Pg.122 , Pg.123 ]




SEARCH



Polyacetals

© 2024 chempedia.info