The solvent xylene has long been added to thick polyurethane resins; however, with the growing focus on environmentally friendly materials, such solvents need to be eliminated. This company has developed trimethoxy, dimethoxy and triethoxy silane-terminated polyether and polyurethane chains, called hybrid polymers.
Polymers’ high viscosity can reportedly be fixed by blocking the hydrogen bonding with clever molecular engineering; by adding less than 1% of methanol, hydrogen bonding between chains is blocked by the methanol hydrogen bonding to the polymer chain. Thus, each polymer chain is able to slip relative to the other chains. The methanol can be removed in processing so the polymer has good creep resistance when finally crosslinked.
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