Determination of Propagation Rate Constants Using a Pulsed Laser Technique

Thomas P. Davis; Kenneth F. O'Driscoll; Mark C. Piton; Mitchell A. Winnik

doi:10.1021/ma00196a043

Determination of Propagation Rate Constants Using a Pulsed Laser Technique

Thomas P. Davis, Kenneth F. O'Driscoll, Mark C. Piton, Mitchell A. Winnik

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115 Citations (Scopus)

Abstract

Propagation rate constants (k_p) for the polymerization of methyl methacrylate (MMA) and styrene (STY) were determined by using a recently developed experimental technique. The procedure utilized a pulsed laser UV light source for the polymerization, and gel permeation chromatography (GPC) was used to analyze the products. The average k_pvalues obtained were 294 ± 9 and 78 ± 6 L mol^-1s^-1 for MMA and STY, respectively at 25 °C. These k_p values were found to be independent of chain length (v), initiator type, and concentration. The inclusion of methanol, ethylbenzene (to STY), ethyl acetate (to MMA), or poly-STY at 0.5% w/v as additive to the polymerization mixture had no significant effect on k_p.

Original language	English
Pages (from-to)	2785-2788
Number of pages	4
Journal	Macromolecules
Volume	22
Issue number	6
DOIs	https://doi.org/10.1021/ma00196a043
Publication status	Published - 1 Nov 1989
Externally published	Yes

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title = "Determination of Propagation Rate Constants Using a Pulsed Laser Technique",

abstract = "Propagation rate constants (kp) for the polymerization of methyl methacrylate (MMA) and styrene (STY) were determined by using a recently developed experimental technique. The procedure utilized a pulsed laser UV light source for the polymerization, and gel permeation chromatography (GPC) was used to analyze the products. The average kpvalues obtained were 294 ± 9 and 78 ± 6 L mol-1s-1 for MMA and STY, respectively at 25 °C. These kp values were found to be independent of chain length (v), initiator type, and concentration. The inclusion of methanol, ethylbenzene (to STY), ethyl acetate (to MMA), or poly-STY at 0.5% w/v as additive to the polymerization mixture had no significant effect on kp.",

author = "Davis, {Thomas P.} and O'Driscoll, {Kenneth F.} and Piton, {Mark C.} and Winnik, {Mitchell A.}",

year = "1989",

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T1 - Determination of Propagation Rate Constants Using a Pulsed Laser Technique

AU - Davis, Thomas P.

AU - O'Driscoll, Kenneth F.

AU - Piton, Mark C.

AU - Winnik, Mitchell A.

PY - 1989/11/1

Y1 - 1989/11/1

N2 - Propagation rate constants (kp) for the polymerization of methyl methacrylate (MMA) and styrene (STY) were determined by using a recently developed experimental technique. The procedure utilized a pulsed laser UV light source for the polymerization, and gel permeation chromatography (GPC) was used to analyze the products. The average kpvalues obtained were 294 ± 9 and 78 ± 6 L mol-1s-1 for MMA and STY, respectively at 25 °C. These kp values were found to be independent of chain length (v), initiator type, and concentration. The inclusion of methanol, ethylbenzene (to STY), ethyl acetate (to MMA), or poly-STY at 0.5% w/v as additive to the polymerization mixture had no significant effect on kp.

AB - Propagation rate constants (kp) for the polymerization of methyl methacrylate (MMA) and styrene (STY) were determined by using a recently developed experimental technique. The procedure utilized a pulsed laser UV light source for the polymerization, and gel permeation chromatography (GPC) was used to analyze the products. The average kpvalues obtained were 294 ± 9 and 78 ± 6 L mol-1s-1 for MMA and STY, respectively at 25 °C. These kp values were found to be independent of chain length (v), initiator type, and concentration. The inclusion of methanol, ethylbenzene (to STY), ethyl acetate (to MMA), or poly-STY at 0.5% w/v as additive to the polymerization mixture had no significant effect on kp.

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JO - Macromolecules

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Determination of Propagation Rate Constants Using a Pulsed Laser Technique

Abstract

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