Alka Prasher
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Alka Prasher has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
David A. Nicewicz
Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, USA
1 shared publication- Huamin Hu
Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, USA
1 shared publication - Joji Tanaka
Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599, USA
1 shared publication - Wei You
University of North Carolina at Chapel Hill
1 shared publication
Latest Publications
- 24 June 2019
- Published by Royal Society of Chemistry (RSC) in Polymer Chemistry
- Vol. 10 (30) , 4126-4133
Alcohol mediated degenerate chain transfer controlled cationic polymerisation of para-alkoxystyrene
In this report we demonstrate methanol as an effective degenerative chain transfer agent to control the cationic polymerisation (initiated by triflic acid) of electron rich p-alkoxy-styrenes, such as p-methoxystyrene (p-MOS). Kinetic analysis revealed that an induction period occurs initially during which free cationic polymerisation occurs at low monomer conversion before proceeding through the pseudo first order rate, analogous to the RAFT mechanism. Ethanol and isopropanol also demonstrated excellent control (Đ > 1.30), however, with an apparent increase in experimental molecular weight. Furthermore, methanol controlled polymers were successfully chain extended upon sequential monomer addition, demonstrating the ‘livingness’ of the alcohol mediated cationic polymerisation.
- 24 June 2019
- Published by Royal Society of Chemistry (RSC) in Polymer Chemistry
- Vol. 10 (30) , 4126-4133
Alcohol mediated degenerate chain transfer controlled cationic polymerisation of para-alkoxystyrene
In this report we demonstrate methanol as an effective degenerative chain transfer agent to control the cationic polymerisation (initiated by triflic acid) of electron rich p-alkoxy-styrenes, such as p-methoxystyrene (p-MOS). Kinetic analysis revealed that an induction period occurs initially during which free cationic polymerisation occurs at low monomer conversion before proceeding through the pseudo first order rate, analogous to the RAFT mechanism. Ethanol and isopropanol also demonstrated excellent control (Đ > 1.30), however, with an apparent increase in experimental molecular weight. Furthermore, methanol controlled polymers were successfully chain extended upon sequential monomer addition, demonstrating the ‘livingness’ of the alcohol mediated cationic polymerisation.