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Simple method to analyze the molecular weight of polymers using cyclic voltammetry
- Title
- Simple method to analyze the molecular weight of polymers using cyclic voltammetry
- Authors
- Kim, Hae-Young; Lee, Jinhee; Song, Sua; Kang, Inah; Kim, Sang Youl; Kim, Byung-Kwon
- Ewha Authors
- 김병권
- SCOPUS Author ID
- 김병권
- Issue Date
- 2021
- Journal Title
- SENSORS AND ACTUATORS B-CHEMICAL
- ISSN
- 0925-4005
- Citation
- SENSORS AND ACTUATORS B-CHEMICAL vol. 330
- Keywords
- Cyclic voltammetry; Poly(methyl methacrylate); Dynamic viscosity; Stokes-Einstein equation; Molecular weight detection
- Publisher
- ELSEVIER SCIENCE SA
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- 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.
- DOI
- 10.1016/j.snb.2020.129305
- Appears in Collections:
- 자연과학대학 > 화학·나노과학전공 > Journal papers
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