(organic chemistry) A synthetic polymer made by the reaction of sodium polysulfide with an organic dichloride; resistant to light, oxygen, oils, and solvents; impermeable to gases; poor tensile strength and abrasion resistance.
polysulfide rubber
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(¦päl·i′səl′fīd ′rəb·ər)
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A synthetic polymer that is resistant to light, oils, and solvents; particularly useful as a sealant.
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