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1.3.5- Trioxane crystallization during polymerization

During the initial polymerization of trioxane with (C4H9)2OBF3 in melt or solution, no solid polymer is formed, and the reaction medium remains clear. Using a high resolution NMR spectroscope, C. S. H. Chen and A. Di Edwardo observed the appearance of soluble linear polyoxy-methylene chains. In the cationic copolymerization of trioxane with 1,3-dioxolane, V. Jaacks found also that a soluble copolymer forms first and turns later into a crystalline copolymer of different composition. Crystallization and polymerization proceed simultaneously in the solid phase. [Pg.12]

Table 7.7 Growth of polyoxymethylene crystals during cationic polymerization of 1,3,5-trioxane hi nitrobenzene at 35 °C I22>... Table 7.7 Growth of polyoxymethylene crystals during cationic polymerization of 1,3,5-trioxane hi nitrobenzene at 35 °C I22>...
See other pages where 1.3.5- Trioxane crystallization during polymerization is mentioned: [Pg.874]    [Pg.397]    [Pg.595]    [Pg.867]    [Pg.398]    [Pg.110]    [Pg.350]    [Pg.124]   
See also in sourсe #XX -- [ Pg.107 , Pg.108 , Pg.115 ]



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