Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate: A route to architectural control of side-chain liquid-crystalline polymers

Xiaojuan Hao; Johan P.A. Heuts; Christopher Barner-Kowollik; Thomas P. Davis; Evan Evans

doi:10.1002/pola.10894

Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate: A route to architectural control of side-chain liquid-crystalline polymers

Xiaojuan Hao
, Johan P.A. Heuts
, Christopher Barner-Kowollik (Corresponding author)
, Thomas P. Davis
, Evan Evans

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

42 Citations (Scopus)

Abstract

Side-chain liquid-crystalline polymers of 6-[4(4′-methoxyphenyl)phenoxy]-hexyl methacrylate with controlled molecular weights and narrow polydispersities were prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization with 2-(2-cyanopropyl) dithiobenzoate as the RAFT agent. Differential scanning calorimetry studies showed that the polymers produced via the RAFT process had a narrower thermal stability range of the liquid-crystalline mesophase than the polymers formed via conventional free-radical polymerization. In addition, a chain length dependence of this stability range was found. The generated RAFT polymers displayed optical textures similar to those of polymers produced via conventional free-radical polymerization.

Original language	English
Pages (from-to)	2949-2963
Number of pages	15
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	41
Issue number	19
DOIs	https://doi.org/10.1002/pola.10894
Publication status	Published - 1 Oct 2003
Externally published	Yes

Keywords

Liquid-cystalline polymers (LCP)
Living polymerization
Radical polymerization
Reversible addition-fragmentation chain transfer
Synthesis

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Hao, X., Heuts, J. P. A., Barner-Kowollik, C., Davis, T. P., & Evans, E. (2003). Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate: A route to architectural control of side-chain liquid-crystalline polymers. Journal of Polymer Science, Part A: Polymer Chemistry, 41(19), 2949-2963. https://doi.org/10.1002/pola.10894

Hao, Xiaojuan ; Heuts, Johan P.A. ; Barner-Kowollik, Christopher et al. / Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate : A route to architectural control of side-chain liquid-crystalline polymers. In: Journal of Polymer Science, Part A: Polymer Chemistry. 2003 ; Vol. 41, No. 19. pp. 2949-2963.

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abstract = "Side-chain liquid-crystalline polymers of 6-[4(4′-methoxyphenyl)phenoxy]-hexyl methacrylate with controlled molecular weights and narrow polydispersities were prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization with 2-(2-cyanopropyl) dithiobenzoate as the RAFT agent. Differential scanning calorimetry studies showed that the polymers produced via the RAFT process had a narrower thermal stability range of the liquid-crystalline mesophase than the polymers formed via conventional free-radical polymerization. In addition, a chain length dependence of this stability range was found. The generated RAFT polymers displayed optical textures similar to those of polymers produced via conventional free-radical polymerization.",

keywords = "Liquid-cystalline polymers (LCP), Living polymerization, Radical polymerization, Reversible addition-fragmentation chain transfer, Synthesis",

author = "Xiaojuan Hao and Heuts, \{Johan P.A.\} and Christopher Barner-Kowollik and Davis, \{Thomas P.\} and Evan Evans",

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Hao, X, Heuts, JPA, Barner-Kowollik, C, Davis, TP & Evans, E 2003, 'Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate: A route to architectural control of side-chain liquid-crystalline polymers', Journal of Polymer Science, Part A: Polymer Chemistry, vol. 41, no. 19, pp. 2949-2963. https://doi.org/10.1002/pola.10894

Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate: A route to architectural control of side-chain liquid-crystalline polymers. / Hao, Xiaojuan; Heuts, Johan P.A.; Barner-Kowollik, Christopher (Corresponding author) et al.
In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 41, No. 19, 01.10.2003, p. 2949-2963.

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

TY - JOUR

T1 - Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate

T2 - A route to architectural control of side-chain liquid-crystalline polymers

AU - Hao, Xiaojuan

AU - Heuts, Johan P.A.

AU - Barner-Kowollik, Christopher

AU - Davis, Thomas P.

AU - Evans, Evan

PY - 2003/10/1

Y1 - 2003/10/1

N2 - Side-chain liquid-crystalline polymers of 6-[4(4′-methoxyphenyl)phenoxy]-hexyl methacrylate with controlled molecular weights and narrow polydispersities were prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization with 2-(2-cyanopropyl) dithiobenzoate as the RAFT agent. Differential scanning calorimetry studies showed that the polymers produced via the RAFT process had a narrower thermal stability range of the liquid-crystalline mesophase than the polymers formed via conventional free-radical polymerization. In addition, a chain length dependence of this stability range was found. The generated RAFT polymers displayed optical textures similar to those of polymers produced via conventional free-radical polymerization.

AB - Side-chain liquid-crystalline polymers of 6-[4(4′-methoxyphenyl)phenoxy]-hexyl methacrylate with controlled molecular weights and narrow polydispersities were prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization with 2-(2-cyanopropyl) dithiobenzoate as the RAFT agent. Differential scanning calorimetry studies showed that the polymers produced via the RAFT process had a narrower thermal stability range of the liquid-crystalline mesophase than the polymers formed via conventional free-radical polymerization. In addition, a chain length dependence of this stability range was found. The generated RAFT polymers displayed optical textures similar to those of polymers produced via conventional free-radical polymerization.

KW - Liquid-cystalline polymers (LCP)

KW - Living polymerization

KW - Radical polymerization

KW - Reversible addition-fragmentation chain transfer

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Hao X, Heuts JPA, Barner-Kowollik C, Davis TP, Evans E. Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate: A route to architectural control of side-chain liquid-crystalline polymers. Journal of Polymer Science, Part A: Polymer Chemistry. 2003 Oct 1;41(19):2949-2963. doi: 10.1002/pola.10894

Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)-phenoxy]hexyl methacrylate: A route to architectural control of side-chain liquid-crystalline polymers

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Keywords

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