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Niraj Kumar Vishwakarma
Researcher at Pohang University of Science and Technology
Publications - 35
Citations - 664
Niraj Kumar Vishwakarma is an academic researcher from Pohang University of Science and Technology. The author has contributed to research in topics: Copolymer & Polymerization. The author has an hindex of 16, co-authored 27 publications receiving 534 citations. Previous affiliations of Niraj Kumar Vishwakarma include Indian Institutes of Technology & Banaras Hindu University.
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Journal ArticleDOI
Synthesis of Well-Defined Amphiphilic Poly(ε-caprolactone)-b-poly(N-vinylpyrrolidone) Block Copolymers via the Combination of ROP and Xanthate-Mediated RAFT Polymerization
Avnish Kumar Mishra,Vijay Kumar Patel,Niraj Kumar Vishwakarma,Chandra Sekhar Biswas,Manoj Raula,Arvind Misra,Tarun K. Mandal,Biswajit Ray +7 more
TL;DR: In this article, an amphiphilic poly(e-caprolactone)-b-poly(N-vinylpyrrolidone) block copolymers were successfully prepared via the combination of ring-opening polymerization (ROP) and xanthate-mediated reversible addition−fragmentation chain transfer (RAFT) polymerization.
Journal ArticleDOI
Effects of Tacticity and Molecular Weight of Poly(N-isopropylacrylamide) on Its Glass Transition Temperature
Chandra Sekhar Biswas,Vijay Kumar Patel,Niraj Kumar Vishwakarma,Vimal K. Tiwari,Biswajit Maiti,Pralay Maiti,Masami Kamigaito,Yoshio Okamoto,Yoshio Okamoto,Biswajit Ray +9 more
TL;DR: A series of high molecular weight poly(N-isopropylacrylamide) (PNIPAM)s with low polydispersity (Mn = 7.0 × 104 to 10.2× 104 g mol-1, PDI = 1.23 −1.35) having different isotacticity [meso diad (m) =...
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Integrated CO 2 capture-fixation chemistry via interfacial ionic liquid catalyst in laminar gas/liquid flow
Niraj Kumar Vishwakarma,Ajay Singh,Ajay Singh,Yoon-Ho Hwang,Dong-Hyeon Ko,Jin-Oh Kim,A. Giridhar Babu,Dong-Pyo Kim +7 more
TL;DR: An interfacial catalytic reaction platform for an integrated autonomous process of simultaneously capturing/fixing CO2 in gas–liquid laminar flow with subsequently providing a work- up step to enable direct CO2 utilization to produce high-valued specialty chemicals from flue gases without pre-separation and work-up steps.
Journal ArticleDOI
Synthesis of well-defined amphiphilic poly(d,l-lactide)-b-poly(N-vinylpyrrolidone) block copolymers using ROP and xanthate-mediated RAFT polymerization
Kalyan Ramesh,Avnish Kumar Mishra,Vijay Kumar Patel,Niraj Kumar Vishwakarma,Chandra Sekhar Biswas,Tapas K. Paira,Tarun K. Mandal,Pralay Maiti,Nira Misra,Biswajit Ray +9 more
TL;DR: In this article, an amphiphilic poly( d, l -lactide)-b -poly( N -vinylpyrrolidone) (PDLLA-b -PNVP) block copolymers were successfully prepared using ring-opening polymerization (ROP) and xanthate-mediated reversible addition-fragmentation chain transfer (RAFT) polymerization.
Journal ArticleDOI
(S)-2-(Ethyl propionate)-(O-ethyl xanthate) and (S)-2-(Ethyl isobutyrate)-(O-ethyl xanthate)-mediated RAFT polymerization of N-vinylpyrrolidone
Vijay Kumar Patel,Avnish Kumar Mishra,Niraj Kumar Vishwakarma,Chandra Sekhar Biswas,Biswajit Ray +4 more
TL;DR: In this article, a reversible addition-fragmentation chain transfer (RAFT) agents for the radical polymerization of N-vinylpyrrolidone (NVP) was used.