참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Acrylic Acid | HCID 6581 | — |
| 반응물 | Butyl Acrylate | HCID 8846 | — |
| 반응물 | Ammonium Hydroxide | HCID 14923 | — |
| 반응물 | Pentaerythritol tetra(3-mercaptopropionate) | HCID 82056 | — |
| 반응물 | Silane, ethenyltris(1-methylethoxy)- | HCID 87409 | — |
| 촉매 | Azobisisobutyronitrile | HCID 6547 | — |
| 생성물 | Butyl Methacrylate | HCID 7354 | — |
| 생성물 | Butyl Acrylate | HCID 8846 | — |
반응 단계
A heteroarm star polymer was prepared by stage polymerization using pentaerythritol tetrakis(3-mercaptopropionate). A monomer blend of 5 pphm vinyltriisoproxysilane, 5 pphm of butyl acrylate, 40 pphm of butyl methacrylate and 2.5 pphm of pentaerythritol tetrakis(3-menrcaptopropionate) was polymerized for 45 minutes with 0.5 pphm AIBN as catalyst. A second monomer mixture of 5 pphm of butyl acrylate, 5 pphm of vinyltriisopropoxysilane and 40 pphm of acrylic acid was then added to the reaction and the polymerization continued for 2 additional hours. The reaction was cooled and aqueous ammonium hydroxide was added and stirred for 30 minutes. After that, the isopropyl alcohol was removed and water was added to make a stable colloid. The end polymer pH was adjusted to 9.5 using aqueous ammonium hydroxide. The physical properties of the polymer are summarized in Table I.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 특허 번호 | US06420479B1 |
|---|
| 출처 데이터셋 | uspto-grants-2002_07 |
|---|
| ORD ID | ord-03e1a6cc641747a79aca3dcf05300372 |
|---|
| 출처 메모 | uspto-grants-2002_07 |
|---|
