Figure-Eight-Shaped and Cage-Shaped Cyclic Polystyrenes

Taeheon Lee; Joongsuk Oh; Jonghwa Jeong; Haeji Jung; June Huh; Taihyun Chang; Hyun Jong Paik

doi:10.1021/acs.macromol.6b00093

Figure-Eight-Shaped and Cage-Shaped Cyclic Polystyrenes

Taeheon Lee, Joongsuk Oh, Jonghwa Jeong, Haeji Jung, June Huh, Taihyun Chang, Hyun Jong Paik

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

25 Citations (Scopus)

Abstract

Nonlinear polystyrenes (PS) with similar molecular weights but with different molecular structures having star-, figure-8-, and cage-shaped architectures were synthesized by combining atom transfer radical polymerization (ATRP) and click chemistry. Figure-8- and cage-shaped PS were fractionated by using a gradient normal phase liquid chromatography as confirmed by SEC-LS, MALDI-TOF MS, ¹H NMR, and FT-IR spectrometry. Their purities were estimated by using a two-dimensional liquid chromatography (2D-LC). The glass transition temperatures of these topologically different polymers were in the order of cage-, figure-8-, and star-shaped polymers possibly due to the multiple links that constrain the overall molecular diffusivity in the case of multicyclic polymers (figure-8, and cage). Monte Carlo simulation on the glass transition behavior of model system also agreed well with the experimental results.

Original language	English
Pages (from-to)	3672-3680
Number of pages	9
Journal	Macromolecules
Volume	49
Issue number	10
DOIs	https://doi.org/10.1021/acs.macromol.6b00093
Publication status	Published - 2016 May 24

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acs.macromol.6b00093

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@article{f286d95b61074296b1e3524b9dfe6072,

title = "Figure-Eight-Shaped and Cage-Shaped Cyclic Polystyrenes",

abstract = "Nonlinear polystyrenes (PS) with similar molecular weights but with different molecular structures having star-, figure-8-, and cage-shaped architectures were synthesized by combining atom transfer radical polymerization (ATRP) and click chemistry. Figure-8- and cage-shaped PS were fractionated by using a gradient normal phase liquid chromatography as confirmed by SEC-LS, MALDI-TOF MS, 1H NMR, and FT-IR spectrometry. Their purities were estimated by using a two-dimensional liquid chromatography (2D-LC). The glass transition temperatures of these topologically different polymers were in the order of cage-, figure-8-, and star-shaped polymers possibly due to the multiple links that constrain the overall molecular diffusivity in the case of multicyclic polymers (figure-8, and cage). Monte Carlo simulation on the glass transition behavior of model system also agreed well with the experimental results.",

author = "Taeheon Lee and Joongsuk Oh and Jonghwa Jeong and Haeji Jung and June Huh and Taihyun Chang and Paik, {Hyun Jong}",

note = "Funding Information: This work was supported by the Active Polymer Center for Pattern Integration (No. R11-2007-0056091) and Basic Science Research Program through the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (2013R1A2A2A01068818). T.C. acknowledges the support from NRF-Korea (2015R1A2A2A01004974). J.H. acknowledges support from NRF-Korea (2013R1A1A2064112). Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

month = may,

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doi = "10.1021/acs.macromol.6b00093",

language = "English",

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AU - Lee, Taeheon

AU - Oh, Joongsuk

AU - Jeong, Jonghwa

AU - Jung, Haeji

AU - Huh, June

AU - Chang, Taihyun

AU - Paik, Hyun Jong

N1 - Funding Information: This work was supported by the Active Polymer Center for Pattern Integration (No. R11-2007-0056091) and Basic Science Research Program through the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (2013R1A2A2A01068818). T.C. acknowledges the support from NRF-Korea (2015R1A2A2A01004974). J.H. acknowledges support from NRF-Korea (2013R1A1A2064112). Publisher Copyright: © 2016 American Chemical Society.

PY - 2016/5/24

Y1 - 2016/5/24

N2 - Nonlinear polystyrenes (PS) with similar molecular weights but with different molecular structures having star-, figure-8-, and cage-shaped architectures were synthesized by combining atom transfer radical polymerization (ATRP) and click chemistry. Figure-8- and cage-shaped PS were fractionated by using a gradient normal phase liquid chromatography as confirmed by SEC-LS, MALDI-TOF MS, 1H NMR, and FT-IR spectrometry. Their purities were estimated by using a two-dimensional liquid chromatography (2D-LC). The glass transition temperatures of these topologically different polymers were in the order of cage-, figure-8-, and star-shaped polymers possibly due to the multiple links that constrain the overall molecular diffusivity in the case of multicyclic polymers (figure-8, and cage). Monte Carlo simulation on the glass transition behavior of model system also agreed well with the experimental results.

AB - Nonlinear polystyrenes (PS) with similar molecular weights but with different molecular structures having star-, figure-8-, and cage-shaped architectures were synthesized by combining atom transfer radical polymerization (ATRP) and click chemistry. Figure-8- and cage-shaped PS were fractionated by using a gradient normal phase liquid chromatography as confirmed by SEC-LS, MALDI-TOF MS, 1H NMR, and FT-IR spectrometry. Their purities were estimated by using a two-dimensional liquid chromatography (2D-LC). The glass transition temperatures of these topologically different polymers were in the order of cage-, figure-8-, and star-shaped polymers possibly due to the multiple links that constrain the overall molecular diffusivity in the case of multicyclic polymers (figure-8, and cage). Monte Carlo simulation on the glass transition behavior of model system also agreed well with the experimental results.

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Figure-Eight-Shaped and Cage-Shaped Cyclic Polystyrenes

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