Kinetic study on termination for surface-initiated living radical polymerization

Hirokazu Zushi; Atsushi Goto; Yoshinobu Tsujii; Kohji Ohno; Takeshi Fukuda

Kinetic study on termination for surface-initiated living radical polymerization

Hirokazu Zushi^*, Atsushi Goto, Yoshinobu Tsujii, Kohji Ohno, Takeshi Fukuda

^*Corresponding author for this work

Kyoto University

Research output: Contribution to conference › Paper › peer-review

Abstract

The termination rate constant k_t between the graft chains for surface-initiated living radical polymerization was determined. The k _t between the graft chains was smaller than that between the ungrafted (free) chains due to the limited diffusion of the graft chain. The former k_t decreased with an increase of the transient lifetime τ of the propagating radical in an activation- deactivation cycle. This is because the probability of termination in a cycle is not proportional to τ due to the limited diffusion of the graft chain. The diffusion of the graft chain was quantitatively discussed from the obtained k_t.

Original language	English
Pages	196
Number of pages	1
Publication status	Published - 2005
Externally published	Yes
Event	54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: May 25 2005 → May 27 2005

Conference

Conference	54th SPSJ Annual Meeting 2005
Country/Territory	Japan
City	Yokohama
Period	5/25/05 → 5/27/05

ASJC Scopus Subject Areas

General Engineering

Keywords

Atom transfer radical polymerization
Kinetics
Surface-initiated living radical polymerization
Termination rate constant

Cite this

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title = "Kinetic study on termination for surface-initiated living radical polymerization",

abstract = "The termination rate constant kt between the graft chains for surface-initiated living radical polymerization was determined. The k t between the graft chains was smaller than that between the ungrafted (free) chains due to the limited diffusion of the graft chain. The former kt decreased with an increase of the transient lifetime τ of the propagating radical in an activation- deactivation cycle. This is because the probability of termination in a cycle is not proportional to τ due to the limited diffusion of the graft chain. The diffusion of the graft chain was quantitatively discussed from the obtained kt.",

keywords = "Atom transfer radical polymerization, Kinetics, Surface-initiated living radical polymerization, Termination rate constant",

author = "Hirokazu Zushi and Atsushi Goto and Yoshinobu Tsujii and Kohji Ohno and Takeshi Fukuda",

year = "2005",

language = "English",

pages = "196",

note = "54th SPSJ Annual Meeting 2005 ; Conference date: 25-05-2005 Through 27-05-2005",

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TY - CONF

T1 - Kinetic study on termination for surface-initiated living radical polymerization

AU - Zushi, Hirokazu

AU - Goto, Atsushi

AU - Tsujii, Yoshinobu

AU - Ohno, Kohji

AU - Fukuda, Takeshi

PY - 2005

Y1 - 2005

N2 - The termination rate constant kt between the graft chains for surface-initiated living radical polymerization was determined. The k t between the graft chains was smaller than that between the ungrafted (free) chains due to the limited diffusion of the graft chain. The former kt decreased with an increase of the transient lifetime τ of the propagating radical in an activation- deactivation cycle. This is because the probability of termination in a cycle is not proportional to τ due to the limited diffusion of the graft chain. The diffusion of the graft chain was quantitatively discussed from the obtained kt.

AB - The termination rate constant kt between the graft chains for surface-initiated living radical polymerization was determined. The k t between the graft chains was smaller than that between the ungrafted (free) chains due to the limited diffusion of the graft chain. The former kt decreased with an increase of the transient lifetime τ of the propagating radical in an activation- deactivation cycle. This is because the probability of termination in a cycle is not proportional to τ due to the limited diffusion of the graft chain. The diffusion of the graft chain was quantitatively discussed from the obtained kt.

KW - Atom transfer radical polymerization

KW - Kinetics

KW - Surface-initiated living radical polymerization

KW - Termination rate constant

UR - http://www.scopus.com/inward/record.url?scp=33645573568&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645573568&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33645573568

SP - 196

T2 - 54th SPSJ Annual Meeting 2005

Y2 - 25 May 2005 through 27 May 2005

ER -

Kinetic study on termination for surface-initiated living radical polymerization

Abstract

Conference

ASJC Scopus Subject Areas

Keywords

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