Polyacrylonitrile-b-poly(butyl acrylate) Block Copolymers as Precursors to Mesoporous Nitrogen-Doped Carbons: Synthesis and Nanostructure

Maciej Kopeć; Rui Yuan; Eric Gottlieb; Carlos M.R. Abreu; Yang Song; Zongyu Wang; Jorge F.J. Coelho; Krzysztof Matyjaszewski; Tomasz Kowalewski

doi:10.1021/acs.macromol.6b02678

Polyacrylonitrile-b-poly(butyl acrylate) Block Copolymers as Precursors to Mesoporous Nitrogen-Doped Carbons: Synthesis and Nanostructure

Maciej Kopeć, Rui Yuan, Eric Gottlieb, Carlos M.R. Abreu, Yang Song, Zongyu Wang, Jorge F.J. Coelho, Krzysztof Matyjaszewski, Tomasz Kowalewski

Department of Chemistry

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

60 Citations (SciVal)

Abstract

A series of polyacrylonitrile-block-poly(butyl acrylate) (PAN-b-PBA) copolymers were prepared by supplemental activator reducing agent atom transfer radical polymerization (SARA ATRP). These copolymers were then used as precursors to pyrolytic nanostructured carbons with the PAN block serving as a nitrogen-rich carbon precursors and the PBA block acting as a sacrificial porogen. The study revealed that while the size of mesopores can be controlled by the size of the porogenic block, the connectivity of pores diminishes with the decrease of the overall molecular weight of the precursor. This partial loss of mesopore connectivity was attributed to the weaker phase segregation between the blocks of shorter lengths inferred from the shape of small-angle X-ray scattering profiles and from the crystallinity of polyacrylonitrile phase.

Original language	English
Pages (from-to)	2759-2767
Number of pages	9
Journal	Macromolecules
Volume	50
Issue number	7
DOIs	https://doi.org/10.1021/acs.macromol.6b02678
Publication status	Published - 11 Apr 2017

Funding

The NSF (DMR 1501324) is acknowledged for financial support. M.K. thanks the Fulbright Program and Polish Ministry of Science and Higher Education (?Mobilnosc Plus? Grant 1055/MOB/2013/0) for financial support. C.M.R.A. acknowledges FCT-MCTES for his Ph.D. scholarship (SFRH/BD/88528/2012). SAXS and WAXS measurements were carried out at the Cornell High Energy Synchrotron Source (CHESS) which is supported by the National Science Foundation and the National Institutes of Health/National Institute of General Medical Sciences under NSF Award DMR-1332208.

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acs.macromol.6b02678

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title = "Polyacrylonitrile-b-poly(butyl acrylate) Block Copolymers as Precursors to Mesoporous Nitrogen-Doped Carbons: Synthesis and Nanostructure",

abstract = "A series of polyacrylonitrile-block-poly(butyl acrylate) (PAN-b-PBA) copolymers were prepared by supplemental activator reducing agent atom transfer radical polymerization (SARA ATRP). These copolymers were then used as precursors to pyrolytic nanostructured carbons with the PAN block serving as a nitrogen-rich carbon precursors and the PBA block acting as a sacrificial porogen. The study revealed that while the size of mesopores can be controlled by the size of the porogenic block, the connectivity of pores diminishes with the decrease of the overall molecular weight of the precursor. This partial loss of mesopore connectivity was attributed to the weaker phase segregation between the blocks of shorter lengths inferred from the shape of small-angle X-ray scattering profiles and from the crystallinity of polyacrylonitrile phase.",

author = "Maciej Kope{\'c} and Rui Yuan and Eric Gottlieb and Abreu, \{Carlos M.R.\} and Yang Song and Zongyu Wang and Coelho, \{Jorge F.J.\} and Krzysztof Matyjaszewski and Tomasz Kowalewski",

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doi = "10.1021/acs.macromol.6b02678",

language = "English",

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T1 - Polyacrylonitrile-b-poly(butyl acrylate) Block Copolymers as Precursors to Mesoporous Nitrogen-Doped Carbons

T2 - Synthesis and Nanostructure

AU - Kopeć, Maciej

AU - Yuan, Rui

AU - Gottlieb, Eric

AU - Abreu, Carlos M.R.

AU - Song, Yang

AU - Wang, Zongyu

AU - Coelho, Jorge F.J.

AU - Matyjaszewski, Krzysztof

AU - Kowalewski, Tomasz

PY - 2017/4/11

Y1 - 2017/4/11

N2 - A series of polyacrylonitrile-block-poly(butyl acrylate) (PAN-b-PBA) copolymers were prepared by supplemental activator reducing agent atom transfer radical polymerization (SARA ATRP). These copolymers were then used as precursors to pyrolytic nanostructured carbons with the PAN block serving as a nitrogen-rich carbon precursors and the PBA block acting as a sacrificial porogen. The study revealed that while the size of mesopores can be controlled by the size of the porogenic block, the connectivity of pores diminishes with the decrease of the overall molecular weight of the precursor. This partial loss of mesopore connectivity was attributed to the weaker phase segregation between the blocks of shorter lengths inferred from the shape of small-angle X-ray scattering profiles and from the crystallinity of polyacrylonitrile phase.

AB - A series of polyacrylonitrile-block-poly(butyl acrylate) (PAN-b-PBA) copolymers were prepared by supplemental activator reducing agent atom transfer radical polymerization (SARA ATRP). These copolymers were then used as precursors to pyrolytic nanostructured carbons with the PAN block serving as a nitrogen-rich carbon precursors and the PBA block acting as a sacrificial porogen. The study revealed that while the size of mesopores can be controlled by the size of the porogenic block, the connectivity of pores diminishes with the decrease of the overall molecular weight of the precursor. This partial loss of mesopore connectivity was attributed to the weaker phase segregation between the blocks of shorter lengths inferred from the shape of small-angle X-ray scattering profiles and from the crystallinity of polyacrylonitrile phase.

UR - https://www.scopus.com/pages/publications/85018463529

U2 - 10.1021/acs.macromol.6b02678

DO - 10.1021/acs.macromol.6b02678

M3 - Article

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SN - 0024-9297

VL - 50

SP - 2759

EP - 2767

JO - Macromolecules

JF - Macromolecules

IS - 7

ER -

Polyacrylonitrile-b-poly(butyl acrylate) Block Copolymers as Precursors to Mesoporous Nitrogen-Doped Carbons: Synthesis and Nanostructure

Abstract

Funding

ASJC Scopus subject areas

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