TY - JOUR
T1 - Simple method to analyze the molecular weight of polymers using cyclic voltammetry
AU - Kim, Hae Young
AU - Lee, Jinhee
AU - Song, Sua
AU - Kang, Inah
AU - Kim, Sang Youl
AU - Kim, Byung Kwon
N1 - Funding Information:
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea, which is funded by the Ministry of Science and ICT (NRF-2018R1C1B6008668). This work was also directly supported by the National Research Foundation of Korea (NRF-2015R1A2A1A10055222 and NRF-2019R1H1A2039753).
Funding Information:
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea, which is funded by the Ministry of Science and ICT ( NRF-2018R1C1B6008668 ). This work was also directly supported by the National Research Foundation of Korea ( NRF-2015R1A2A1A10055222 and NRF-2019R1H1A2039753 ).
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/3/1
Y1 - 2021/3/1
N2 - 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.
AB - 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.
KW - Cyclic voltammetry
KW - Dynamic viscosity
KW - Molecular weight detection
KW - Poly(methyl methacrylate)
KW - Stokes-Einstein equation
UR - http://www.scopus.com/inward/record.url?scp=85098664814&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2020.129305
DO - 10.1016/j.snb.2020.129305
M3 - Article
AN - SCOPUS:85098664814
SN - 0925-4005
VL - 330
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
M1 - 129305
ER -