Simple method to analyze the molecular weight of polymers using cyclic voltammetry
- 주제(키워드) Cyclic voltammetry , Poly(methyl methacrylate) , Dynamic viscosity , Stokes-Einstein equation , Molecular weight detection
- 주제(기타) Chemistry, Analytical
- 주제(기타) Electrochemistry
- 주제(기타) Instruments & Instrumentation
- 설명문(일반) [Kim, Hae-Young; Song, Sua; Kim, Byung-Kwon] Sookmyung Womens Univ, Res Inst Nat Sci, Dept Chem, Seoul 04310, South Korea; [Lee, Jinhee; Kang, Inah; Kim, Sang Youl] Korea Adv Inst Sci & Technol, Dept Chem, Daejeon 34141, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 ELSEVIER SCIENCE SA
- 발행년도 2021
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000182524
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.snb.2020.129305
초록/요약
In this study, we have developed a novel electrochemical method based on cyclic voltammetry to measure the molecular weight of polymers. As the molecular weight of a polymer increases, the viscosity of the corresponding polymer solution also increases. This hinders the diffusion of redox species in the solution, resulting in a proportional decrease in the steady-state current. These changes allow us to measure the molecular weight of a polymer in solution more rapidly and easily than when using conventional methods. Herein, we have verified the proposed method by applying it to measure the molecular weight of poly(methyl methacrylate) in solutions.
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