| Stability and Optimum Polymerized Condition of Polysiloxane-Polyacrylate Core/Shell Polymer | |
| Ge, Chengyue1,2; Wu, Yumin3; Xu, Jun3 | |
| 2010-09-01 | |
| 发表期刊 | ADVANCES IN POLYMER TECHNOLOGY
 |
| 卷号 | 29期号:3页码:161-172 |
| 文章类型 | Article |
| 摘要 | The stable emulsion of core/shell latex with little coagulum (no more than 0.5% in quality relative to total monomers) has been prepared at low temperature with potassium-persulfate (KPS), sodium formaldehyde sulfoxylate (SFS), and 2,2 '-azobis(2-(2-imidazolin-2-yl) propane) dihydrochloride (VA-044) as composite initiators by staged emulsion polymerization. Reactive surfactants were used to significantly improve the stability of emulsion. More interestingly, reverse core/shell structure was investigated when the organic silicon was added in the late period of polymerization. The effects of the emulsifier, initiators, dosage of organic silicon, and monomer's content on conversion and graft efficiency were studied in detail. Moreover, the stability of emulsion was investigated by the values of zeta potential (zeta) and coagulum. More importantly, the thermal performance and stability of PSI/PA composite latex was studied by the glass transition temperature (T(g)). The results showed that there are appropriate values for all factors to obtain high conversion, graft efficiency, and excellent stability: The dosage of surfactant was about 0.44 g, the dosage of VA-044 was about 1000 mg kg(-1), the dosage of organic silicon was about 15%, and the monomer's content was about 30%. In addition, the introduction of organic silicon improved the T(g). (C) 2010 Wiley Periodicals, Inc. Adv Polym Techn 29: 161-172, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/adv.20182 |
| 关键词 | Core/shell Polymers Graft Copolymers Stabilization Thermal Properties |
| DOI | 10.1002/adv.20182 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000282285300003 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/32701 |
| 专题 | 海洋生物技术研发中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Ge, Chengyue,Wu, Yumin,Xu, Jun. Stability and Optimum Polymerized Condition of Polysiloxane-Polyacrylate Core/Shell Polymer[J]. ADVANCES IN POLYMER TECHNOLOGY,2010,29(3):161-172. |
| APA | Ge, Chengyue,Wu, Yumin,&Xu, Jun.(2010).Stability and Optimum Polymerized Condition of Polysiloxane-Polyacrylate Core/Shell Polymer.ADVANCES IN POLYMER TECHNOLOGY,29(3),161-172. |
| MLA | Ge, Chengyue,et al."Stability and Optimum Polymerized Condition of Polysiloxane-Polyacrylate Core/Shell Polymer".ADVANCES IN POLYMER TECHNOLOGY 29.3(2010):161-172. |
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| Stability and Optimu（491KB） | 期刊论文 | 出版稿 | 限制开放 | ODC PDDL | 浏览 | |
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