Cation pool-initiated controlled/living polymerization using microsystems

Aiichiro Nagaki; Kohsuke Kawamura; Seiji Suga; Tsuyoshi Ando; Mitsuo Sawamoto; Jun Ichi Yoshida

doi:10.1021/ja044879k

Cation pool-initiated controlled/living polymerization using microsystems

Aiichiro Nagaki, Kohsuke Kawamura, Seiji Suga, Tsuyoshi Ando, Mitsuo Sawamoto, Jun Ichi Yoshida

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

206 Citations (Scopus)

Abstract

The "cation pool" of an N-acyliminium ion was found to serve as an effective initiator of cationic polymerization of vinyl ethers in a microsystem consisting of two micromixers and a microtube reactor. The polymerization led to very narrow molecular weight distribution (M_w/M_n = 1.14). The molecular weight (M_n) increased linearly with an increase in the amount of the monomer. The carbocationic polymer end was effectively trapped by allyltrimethylsilane. The present observations illustrate the potential of microsystems, in conjunction with the cation pool, to effect polymerization in a highly controlled manner without the deceleration inherent in the dynamic equilibrium between active and dormant species.

Original language	English
Pages (from-to)	14702-14703
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	126
Issue number	45
DOIs	https://doi.org/10.1021/ja044879k
Publication status	Published - Nov 17 2004
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja044879k

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AU - Nagaki, Aiichiro

AU - Kawamura, Kohsuke

AU - Suga, Seiji

AU - Ando, Tsuyoshi

AU - Sawamoto, Mitsuo

AU - Yoshida, Jun Ichi

PY - 2004/11/17

Y1 - 2004/11/17

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AB - The "cation pool" of an N-acyliminium ion was found to serve as an effective initiator of cationic polymerization of vinyl ethers in a microsystem consisting of two micromixers and a microtube reactor. The polymerization led to very narrow molecular weight distribution (Mw/Mn = 1.14). The molecular weight (Mn) increased linearly with an increase in the amount of the monomer. The carbocationic polymer end was effectively trapped by allyltrimethylsilane. The present observations illustrate the potential of microsystems, in conjunction with the cation pool, to effect polymerization in a highly controlled manner without the deceleration inherent in the dynamic equilibrium between active and dormant species.

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Cation pool-initiated controlled/living polymerization using microsystems

Abstract

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