Sulfuric Acid → HCID 19083679, compound

HRID 2236052Notes

Reaction equation

HRID 2236052 reaction equation
S(=O)(=O)(O)O.[CH2:6]([OH:8])[CH3:7].[C:9]1([CH3:15])[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1>>[CH2:6]=[CH:15][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.[OH:8][C:6]1[CH:11]=[CH:10][C:9]([CH:14]=[CH2:13])=[CH:15][CH:7]=1

Participants

3

Reactant 2

HCID 1118Sulfuric AcidHCID 21863594Toluene ethanol

Product 1

HCID 19083679HCID 19083679, compound

Procedure

The obtained copolymer A was dissolved in an ethanol/toluene solvent (volume ratio 7:3) and was then reacted using sulfuric acid at 65° C. for 90 minutes. After washing this reaction solution with an alkaline solution, the resulting solution was subjected to a reprecipitation process using a methanol/water (volume ratio 1:1) solvent to obtain a reprecipitate, then the reprecipitate was filtered to obtain the retained matter, and the retained matter was air-dried to obtain styrene-p-hydroxystyrene (PHS) copolymer B (yield 87%). The Mw of copolymer B was 216,300 and the ratio Mw/Mn was 1.15.

Workup

  1. customwas then reacted
  2. customat 65° C.
  3. customfor 90 minutes
  4. washAfter washing this reaction solution with an alkaline solution
  5. customto obtain a reprecipitate
  6. filtrationthe reprecipitate was filtered
  7. customto obtain the retained matter
  8. customthe retained matter was air-dried

Sources & evidence

ORD record
ord-a7c376844ed74b1aa01f986b72f36416
Source dataset
uspto-grants-2010_05
Patent number
US07714085B2

Reaction notes

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