Copolymerization of N-vinyl Pyrrolidone with functionalized vinyl monomers: synthesis, characterization and reactivity relationships

S. Vijaykumar; S. Prasannkumar; B. S. Sherigara; N. B. Shelke; Tejraj M. Aminabhavi; B. S.R. Reddy

doi:10.1007/BF03218648

Copolymerization of N-vinyl Pyrrolidone with functionalized vinyl monomers: synthesis, characterization and reactivity relationships

S. Vijaykumar, S. Prasannkumar, B. S. Sherigara, N. B. Shelke, Tejraj M. Aminabhavi, B. S.R. Reddy

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Copolymers of N-vinylpyrrolidone (NVP) comonomer with styrene (St), hydroxypropyl methacrylate (HPMA) and carboxyphenyl maleimide (CPMI) were synthesized by free radical polymerization using 2,2'-azobisisobutyronitrile (AIBN) initiator in 1,4-dioxane solvent. The copolymers formed were characterized by FTIR, 'H NMR and ¹³C NMR techniques and their thermal properties were studied by DSC and TGA. Copolymer composition was determined by ¹H NMR and/or by elemental analysis and monomer reactivity ratios (MRR) were estimated by the linear methods of Kelen-Tudos (K-T) and extended Kelen-Tudos (EK-T) and the non-linear approach. Copolymers of St and HPMA with NVP formed blocks of one of the monomer units, whereas alternating copolymers were obtained in CPMI-NVP, depending upon the side chain substitution. The MRR values are discussed in terms of monomer structural properties such as electronegativity and electron delocalization. The sequence distribution of monomers in the copolymers was studied by statistical method based on the average reactivity ratios obtained by EK-T method.

Original language	British English
Pages (from-to)	1003-1009
Number of pages	7
Journal	Macromolecular Research
Volume	17
Issue number	12
DOIs	https://doi.org/10.1007/BF03218648
State	Published - Dec 2009

Keywords

Functionalized vinyl copolymers
N-vinyl-2-pyrrolidone
Reactivity ratios
Sequence distribution

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10.1007/BF03218648

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title = "Copolymerization of N-vinyl Pyrrolidone with functionalized vinyl monomers: synthesis, characterization and reactivity relationships",

abstract = "Copolymers of N-vinylpyrrolidone (NVP) comonomer with styrene (St), hydroxypropyl methacrylate (HPMA) and carboxyphenyl maleimide (CPMI) were synthesized by free radical polymerization using 2,2'-azobisisobutyronitrile (AIBN) initiator in 1,4-dioxane solvent. The copolymers formed were characterized by FTIR, 'H NMR and 13C NMR techniques and their thermal properties were studied by DSC and TGA. Copolymer composition was determined by 1H NMR and/or by elemental analysis and monomer reactivity ratios (MRR) were estimated by the linear methods of Kelen-Tudos (K-T) and extended Kelen-Tudos (EK-T) and the non-linear approach. Copolymers of St and HPMA with NVP formed blocks of one of the monomer units, whereas alternating copolymers were obtained in CPMI-NVP, depending upon the side chain substitution. The MRR values are discussed in terms of monomer structural properties such as electronegativity and electron delocalization. The sequence distribution of monomers in the copolymers was studied by statistical method based on the average reactivity ratios obtained by EK-T method.",

keywords = "Functionalized vinyl copolymers, N-vinyl-2-pyrrolidone, Reactivity ratios, Sequence distribution",

author = "S. Vijaykumar and S. Prasannkumar and Sherigara, {B. S.} and Shelke, {N. B.} and Aminabhavi, {Tejraj M.} and Reddy, {B. S.R.}",

year = "2009",

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doi = "10.1007/BF03218648",

language = "British English",

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T2 - synthesis, characterization and reactivity relationships

AU - Vijaykumar, S.

AU - Prasannkumar, S.

AU - Sherigara, B. S.

AU - Shelke, N. B.

AU - Aminabhavi, Tejraj M.

AU - Reddy, B. S.R.

PY - 2009/12

Y1 - 2009/12

N2 - Copolymers of N-vinylpyrrolidone (NVP) comonomer with styrene (St), hydroxypropyl methacrylate (HPMA) and carboxyphenyl maleimide (CPMI) were synthesized by free radical polymerization using 2,2'-azobisisobutyronitrile (AIBN) initiator in 1,4-dioxane solvent. The copolymers formed were characterized by FTIR, 'H NMR and 13C NMR techniques and their thermal properties were studied by DSC and TGA. Copolymer composition was determined by 1H NMR and/or by elemental analysis and monomer reactivity ratios (MRR) were estimated by the linear methods of Kelen-Tudos (K-T) and extended Kelen-Tudos (EK-T) and the non-linear approach. Copolymers of St and HPMA with NVP formed blocks of one of the monomer units, whereas alternating copolymers were obtained in CPMI-NVP, depending upon the side chain substitution. The MRR values are discussed in terms of monomer structural properties such as electronegativity and electron delocalization. The sequence distribution of monomers in the copolymers was studied by statistical method based on the average reactivity ratios obtained by EK-T method.

AB - Copolymers of N-vinylpyrrolidone (NVP) comonomer with styrene (St), hydroxypropyl methacrylate (HPMA) and carboxyphenyl maleimide (CPMI) were synthesized by free radical polymerization using 2,2'-azobisisobutyronitrile (AIBN) initiator in 1,4-dioxane solvent. The copolymers formed were characterized by FTIR, 'H NMR and 13C NMR techniques and their thermal properties were studied by DSC and TGA. Copolymer composition was determined by 1H NMR and/or by elemental analysis and monomer reactivity ratios (MRR) were estimated by the linear methods of Kelen-Tudos (K-T) and extended Kelen-Tudos (EK-T) and the non-linear approach. Copolymers of St and HPMA with NVP formed blocks of one of the monomer units, whereas alternating copolymers were obtained in CPMI-NVP, depending upon the side chain substitution. The MRR values are discussed in terms of monomer structural properties such as electronegativity and electron delocalization. The sequence distribution of monomers in the copolymers was studied by statistical method based on the average reactivity ratios obtained by EK-T method.

KW - Functionalized vinyl copolymers

KW - N-vinyl-2-pyrrolidone

KW - Reactivity ratios

KW - Sequence distribution

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Copolymerization of N-vinyl Pyrrolidone with functionalized vinyl monomers: synthesis, characterization and reactivity relationships

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