참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Acrylic Acid | HCID 6581 | — |
| 반응물 | Methyl Acrylate | HCID 7294 | — |
| 반응물 | Styrene | HCID 7501 | — |
| 반응물 | 3,4-dihydro-2H-pyran | HCID 8080 | — |
| 반응물 | Pyridinium chloride | HCID 10176127 | — |
| 반응물 | Styrene acrylic acid copolymer | HCID 22481611 | — |
| 생성물 | Methyl Acrylate | HCID 7294 | — |
| 생성물 | Styrene | HCID 7501 | — |
| 생성물 | Oxan-2-yl prop-2-enoate | HCID 21909470 | — |
반응 단계
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.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 특허 번호 | US05072029 |
|---|
| 출처 데이터셋 | uspto-grants-1991_12 |
|---|
| ORD ID | ord-d8beffdec2bc47069b81aabb5138d6e3 |
|---|
| 출처 메모 | uspto-grants-1991_12 |
|---|
