Reaktionsgleichung
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[C:9]([O:13][CH3:14])(=[O:12])[CH:10]=[CH2:11].[C:15]([OH:19])(=[O:18])[CH:16]=[CH2:17].C=CC1C=CC=CC=1.C=CC(O)=O.[O:33]1[CH:38]=[CH:37][CH2:36][CH2:35][CH2:34]1.Cl.N1C=CC=CC=1>>[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[C:9]([O:13][CH3:14])(=[O:12])[CH:10]=[CH2:11].[C:15]([O:19][CH:34]1[CH2:35][CH2:36][CH2:37][CH2:38][O:33]1)(=[O:18])[CH:16]=[CH2:17]Komponenten
Versuchsvorschrift
Using the procedure of Example 6, reaction of 10 g of poly(styrene [55 wt %], methyl acrylate [20 wt %], acrylic acid [25 wt %]) (Joncryl 67), 125 mL of 3,4-dihydro-2H-pyran, and 0.1 g of pyridine hydrochloride gave 10 g of poly(styrene, methyl acrylate, tetrahydropyranyl acrylate) after precipitation from dichloromethane in methanol at -70° C. 1H NMR (360 MHz, THF-d8): 5.9 (OCHO of tetrahydropyranyl ester). Mole ratio of styrene to tetrahydropyranyl ester=1.8:1. GPC: Mn=6260, Mw=15,900, Mw/Mn=2.54. DSC: Tg=52° C., decomposition endotherm peak at 180.77° C. (125.4 J/g). TGA: 20.69% weight loss at about 180° C. Titration of the product with 0.1N sodium hydroxide shows the presence of 0.2 meq/g of residual carboxylic acid groups. Titration of the starting material shows 3.4 meq/g of carboxylic acid.
Quellen und Nachweise
- ORD-Eintrag
- ord-d8beffdec2bc47069b81aabb5138d6e3
- Quelldatensatz
- uspto-grants-1991_12
- Patentnummer
- US05072029
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