Abstract
Poly(N-vinylamide) derivatives were synthesized to improve the performance of kinetic hydrate inhibitors (KHIs). In this work, we synthesized poly(N-vinylformamide) (PNVF) and poly(N-vinylcaprolactam) (PVCap) by free radical polymerization with several commercial chain transfer agents (CTAs), which afforded a few thousand Mn. The structures of synthesized PNVF and PVCap were then investigated by 1H NMR and MALDI-TOF/MS spectrograms. KHI properties of the synthesized PNVF and PVCap polymers were also evaluated by the high-pressure slow constant cooling KHI test method. Some of the tested polymers showed a better KHI effect than PVCap.
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Acknowledgments
This study is supported by Research Foundation for the Electrotechnology of Chubu (R-01206). This study is also supported by JSPS KAKENHI (JP20H05223). We appreciate Ms. Yoshiko Nishikawa for the measurements and analyses of MALDI-TOF/MS.
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Choi, J., Kelland, M.A., Furumai, H. et al. Preparation of poly(N-vinyl caprolactam) with various end groups using chain transfer agents and evaluation of their effects on kinetic hydrate inhibition. Polym. Bull. 79, 3513–3522 (2022). https://doi.org/10.1007/s00289-021-03644-7
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DOI: https://doi.org/10.1007/s00289-021-03644-7