Influence of the cocatalyst structure on the statistical copolymerization of methyl methacrylate with bulky methacrylates using the zirconocene complex Cp₂ZrMe₂

Abstract

Statistical copolymers of methyl methacrylate with cyclohexyl and trimethylsilyloxy ethyl methacrylate were synthesized with two different catalytic systems based on the zirconocene complex Cp2ZrMe2. The reactivity ratios of methyl methacrylate and these methacrylates were calculated with the Finemann–Ross, inverted Finemann–Ross, and Kelen–Tüdos graphical methods. The structural parameters of these copolymers were estimated from the calculation of the dyad monomer sequence fractions. Two different borate cocatalysts were employed, and their effect on the copolymerization process is discussed. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 3305–3314, 2005

Statistical copolymers of N‐vinylpyrrolidone and 2‐(dimethylamino)ethyl methacrylate via RAFT: Monomer reactivity ratios, thermal properties, and kinetics of thermal decomposition

“…It is well known that copolymer properties are correlated to copolymer structure, so, the elucidation and manipulation of structure (composition, monomer sequence distribution) and kinetics (propagation rate coefficients and reactivity ratios) are of major importance. An enormous amount of work, both experimental and theoretical, describes the significance of copolymerization in the field of polymer science …”

“…An enormous amount of work, both experimental and theoretical, describes the significance of copolymerization in the field of polymer science. [3][4][5][6][7][8][9][10][11][12] This study is focused on the Reversible Addition-Fragmentation chain Transfer (RAFT) copolymerization of N-vinylpyrrolidone (NVP) and 2-(dimethylamino)ethyl methacrylate (DMAEMA). RAFT is a powerful and broadly applicable method for copolymerization as it combines the benefits of conventional radical polymerization and that of living polymerization techniques.…”

Thermal Stability and Kinetics of Thermal Decomposition of Statistical Copolymers of N-Vinylpyrrolidone and Alkyl Methacrylates Synthesized via RAFT Polymerization

“…e copolymer composition, the distribution, and the mean sequence length of the monomer units along the copolymeric chain are key parameters to elucidate the properties of the final product. An enormous amount of work, both experimental and theoretical, confirms the significance of statistical copolymerization in polymer science [20][21][22][23][24][25][26][27][28][29][30][31][32][33].…”

Statistical Ring Opening Metathesis Copolymerization of Norbornene and Cyclopentene by Grubbs’ 1st-Generation Catalyst

“…The incorporation of two different monomers, with diverse physical and/or chemical properties, in the same polymer molecule in varying proportions leads to the formation of new materials with great scientific and commercial importance [12]. The most important feature of successful copolymerization is the ability to control the amount and distribution of the comonomers in the product [13,14,15,16,17,18,19]. The elucidation of copolymer structure (copolymer composition, monomer sequence distribution) and kinetics (propagation rate coefficients) are the major concerns for the prediction of copolymer properties and the correlation between structure and properties [20].…”