Isobutyl Methacrylate → HCID 86751387, compound

HRID 1489299Notes

Reaction equation

HRID 1489299 reaction equation
[C:1]([O:6][CH2:7][CH2:8][OH:9])(=[O:5])[C:2]([CH3:4])=[CH2:3].[C:10]([O:15][CH2:16][CH:17]([CH3:19])[CH3:18])(=[O:14])[C:11]([CH3:13])=[CH2:12].C(S)CCCCCCCCCCC.O1CCOCC1>CCCCCC>[C:1]([O:6][CH2:7][CH2:8][OH:9])(=[O:5])[C:2]([CH3:4])=[CH2:3].[C:10]([O:15][CH2:16][CH:17]([CH3:19])[CH3:18])(=[O:14])[C:11]([CH3:13])=[CH2:12]

Participants

6

Reactant 4

HCID 7352Isobutyl MethacrylateHCID 81951-DodecanethiolHCID 133602-Hydroxyethyl MethacrylateHCID 312751,4-Dioxane

Product 1

HCID 86751387HCID 86751387, compoundYield 119.5%

Reagents, catalysts & solvents 1

HCID 8058HexaneSolvent

Procedure

Into a 1 l four-necked flask, 10.0 g of hydroxyethyl methacrylate, 40.0 g of isobutyl methacrylate, 10.0 g of 2,2'-azobisisobutylnitrile (AIBN), 5.0 g of n-dodecylmercaptan and 500 ml of dioxane were charged, dissolved and stirred. Then, stirring was continued under a nitrogen stream at 70° C. for 6 hours. The reaction solution was put into n-hexane to precipitate the resin. Purification was repeated with tetrahydrofuran/n-hexane, and then vacuum drying was conducted at 40° C. to obtain a resin powder. The obtained amount was 40.0 g. The weight average molecular weight as measured by GPC was 16,000 as calculated as polystyrene; the glass transition temperature (Tg) was 59° C.; and the acid value calculated after titration by means of a potentiometer was 110. 25 g of a hydroxyethyl methacrylate/isobutyl methacrylate copolymer thus obtained, 4.4 g of a melamine-type heat-curing agent (CYMEL (trademark) 303, manufactured by Mitsui Cyanamid) and 83 g of ethyl lactate were mixed and dissolved, followed by filtration with a 0.2 μm filter to obtain a planarizing material solution.

Workup

  1. dissolutiondissolved
  2. stirringThen, stirring
  3. customat 70° C.
  4. customfor 6 hours
  5. customto precipitate the resin
  6. customPurification
  7. customvacuum drying
  8. customwas conducted at 40° C.
  9. customto obtain a resin powder
  10. customwas 59° C.

Sources & evidence

ORD record
ord-0b482dc1c3fa400c9f4da968153569f1
Source dataset
uspto-grants-1997_10
Patent number
US05677380

Reaction notes

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