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solution polymerization |
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solution polymerization [sə¦lü·shən pə‚lim·ə·rə′zā·shən] (chemical engineering) A process for producing an addition polymer by heating the monomer, solvent, initiator, and catalyst together, with polymerization continuing as the solvent is removed. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| 7) prepared PDMS-containing polyurethanes that were derived from a hydroxyl-terminated poly(tetramethylene oxide) (PTMO), secondary aminoalkyd functional PDMS oligomer, 4,4'-methylene diphenyl diisocyanate (MDI), and 1,4-butanediol via solution polymerization in terahy-drofuran (THF)/dimethylacetamide (DMAC). This, combined with the usual high dialkyl phosphate content [low ratio of monoalkyl phosphate (MAP) to dialkyl phosphate (DAP)] of these monomers, makes them difficult to use, especially in a solution polymerization process, because dialkyl phosphate has two double bonds and is a crosslinker for polymerization. Made with the company's Exxpol metallocene catalyst technology and a new solution polymerization process, Vistamaxx thermoplastic elastomers can be used on their own or as modifiers for other polyolefins. |
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