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Adv. Organic Chemistry > Vulcanization > Flashcards

Vulcanization Flashcards

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1
Q

what is vulcanization

A

x-linking of natural rubber and sulfer accelerator (not elemental)

radical reaction

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2
Q

benzothiazole polysulfide complex

A

bt-ssss-bt

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3
Q

initiation

A

bt-ssss-bt + heat/hv to 2 bt-s-s radicals

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4
Q

propagation

A

make allylic radical resonance to 3º radical

either breaks up another bt-ssss-bt

then structure with s-s-bt makes s-bt radical and s radical

2 react to get disulfide linkage

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Adv. Organic Chemistry (27 decks)

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