Quartz crystal microbalance study of the kinetics of surface initiated polymerization
文献类型：期刊论文
| 作者 | Chen XA; Zhang YZ; He JA; Xiong CY; Meng YH(孟永宏) ; Jin G(靳刚); Ma HW
|
| 刊名 | Science in China Series B-Chemistry
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:12页码:2307-2322 |
| ISSN号 | 1006-9291 |
| 合作状况 | 国内 |
| 中文摘要 | Surface initiated polymerization (SIP) is a valuable tool in synthesizing functional polymer brushes, yet the kinetic understanding of SIP lags behind the development of its application. We apply quartz crystal microbalance (QCM) to address two issues that are not fully addressed yet play a central role in the rational design of functional polymer brushes, namely quantitative determination of the kinetics and the initiator efficiency (IE) of SIP. SIP are monitored online using QCM. Two quantitative frequency-thickness (f-T) relations make the direct determination and comparison of the rate of polymerization possible even for different monomers. Based on the bi-termination model, the kinetics of SIP is simply described by two variables, which are related to two polymerization constants, namely a = 1/(k (p,s,app)-[M][R center dot](0)) and b = k (t,s,app)/(k (p,s,app)[M]). Factors that could alter the kinetics of SIP are studied, including (i) the molecular weight of monomers, (ii) the solvent used, (iii) the initial density of the initiator, (iv) the concentration of monomer, [M], and (v) the catalyst system (ratio among the ingredients, metal, ligands, and additives). The dynamic nature of IE is also described by these two variables, IE = a/(a + bt). Instead of the molecular weight and the polydispersity, we suggest that film thickness, the two kinetic parameters (a and b), and the initial density of the initiator and IE be the parameters that characterize ultra-thin polymer brushes. Besides the kinetics study of SIP, the reported method has many other applications, for example, in the fast screening of catalyst system for SIP and other polymerization systems. |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | TRANSFER RADICAL POLYMERIZATION ; METHYL-METHACRYLATE ; AMBIENT-TEMPERATURE ; SILICON SURFACES ; AQUEOUS-MEDIA ; BRUSHES ; POLYMERS ; DENSITY ; GOLD ; MONOLAYERS |
| 收录类别 | SCI |
| 资助信息 | Nationd Natural Science Foundation of China [20604402]; Natural Science Foundation of Beijing [2072008]; National Basic Research Program of Chian [2009CB320300] |
| 原文出处 | http://www.springerlink.com/content/0136851g02016468/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000272917200039 |
| 公开日期 | 2011-03-01 ; 2011-03-30 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/43689]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 推荐引用方式 GB/T 7714 | Chen XA,Zhang YZ,He JA,et al. Quartz crystal microbalance study of the kinetics of surface initiated polymerization[J]. Science in China Series B-Chemistry,2009,52(12):2307-2322. |
| APA | Chen XA.,Zhang YZ.,He JA.,Xiong CY.,孟永宏.,...&Ma HW.(2009).Quartz crystal microbalance study of the kinetics of surface initiated polymerization.Science in China Series B-Chemistry,52(12),2307-2322. |
| MLA | Chen XA,et al."Quartz crystal microbalance study of the kinetics of surface initiated polymerization".Science in China Series B-Chemistry 52.12(2009):2307-2322. |
入库方式： OAI收割
来源：力学研究所
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