Styrene → Lytron 810

HRID 326798

Reaction equation

HRID 326798 reaction equation
C(OOC1(OOC(C)(C)C)CC(C)CC(C)(C)C1)(C)(C)C.[CH2:22]=[CH:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.[C:30]1(=[O:36])[O:35][C:33](=[O:34])[CH:32]=[CH:31]1>>[CH2:22]=[CH:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.[C:33]1(=[O:34])[O:35][C:30](=[O:36])[CH:31]=[CH:32]1

Participants

4

Reactant 3

HCID 7501Styrene2×HCID 7923Maleic AnhydrideHCID 930381,1-Bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane

Product 1

HCID 62707Lytron 810

Conditions

Temperature
100 °C

Procedure

3.68 g of 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane as a polymerization initiator was added to 10 kg of styrene monomer and 0.35 kg of maleic anhydride. The resulting mixture was stirred and then allowed to stand at room temperature overnight, and was filtered through a filter paper to obtain a starting material for polymerization. After replacing with styrene monomer inside an autoclave made of stainless and having a volume of 2 L, the temperature was raised to 100° C and the starting material for polymerization was introduced into the autoclave at a rate of 8 ml/min, and 4 L of a liquid material was distilled from the autoclave. The viscous liquid material distilled after the above liquid material, was introduced to a large amount of hexane to precipitate a styrene-maleic anhydride copolymer resin. After removing the hexane, its composition was analyzed with a 13C-NMR to give the result of styrene/maleic anhydride =99/1 mol %. In addition, the weight average molecular weight measured by a gel permeation chromatography (GPC) gave the result of 200,000.

Workup

  1. filtrationwas filtered through a filter paper
  2. customto obtain a starting material
  3. customfor polymerization
  4. customthe starting material for polymerization
  5. distillationwas distilled from the autoclave
  6. distillationThe viscous liquid material distilled after the above liquid material
  7. additionwas introduced to a large amount of hexane
  8. customto precipitate a styrene-maleic anhydride copolymer resin
  9. customAfter removing the hexane, its composition
  10. customto give the

Sources & evidence

ORD record
ord-5247dc3f4b914345969db8506520b324
Source dataset
uspto-grants-1993_12
Patent number
US05270353

Linked notes

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