Polysulfide polymer | definition of polysulfide polymer by Medical dictionary
an elastomeric synthetic rubber used in dentistry as an impression material for fixed partial prosthodontic structures, inlays for single quadrants, and dental impressions. Also called polysulfide rubber.
polysulfide polymer (pol´ēsul´fīd pol´imur),
n a rubber base impression material that makes use of a mercaptan bondage. It is prepared by mixing a base material (mercaptan) with either an inorganic catalyst (lead peroxide) or an organic catalyst (benzoyl peroxide).
References in periodicals archive
This caulking contained PCBs as plasticizers in two-part polysulfide polymer
is cured by converting mercaptan (-SN) groups to disulfide (-S-S-) bonds.
is cured by converting mercaptan(-SH) end groups to disulfide (-S-S-)bonds.
Liquid polysulfide polymers
, such as the Thiokol LP series (Morton International), are also able to form reactive crosslinking short chains through accelerator peptization of the sulfurs in the polymer chain.