Methylpiperidine-functionalized graphene oxide for efficient curing acceleration and gas barrier of polymer nanocomposites

Jeong Un Jin; Dong Hoon Lee; Ki Ho Nam; Jaesang Yu; Young Kwan Kim; Munju Goh; Seo Gyun Kim; Heon Sang Lee; Bon Cheol Ku; Nam Ho You

doi:10.1016/j.apsusc.2018.09.086

Methylpiperidine-functionalized graphene oxide for efficient curing acceleration and gas barrier of polymer nanocomposites

Jeong Un Jin, Dong Hoon Lee, Ki Ho Nam, Jaesang Yu, Young Kwan Kim, Munju Goh, Seo Gyun Kim, Heon Sang Lee, Bon Cheol Ku, Nam Ho You

Department of Chemistry

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

16 Scopus citations

Abstract

We synthesized methylpiperidine-functionalized graphene oxide (MP-GO) by introducing 4-amino-1-methylpiperidine into reactive epoxy and/or carboxylic acid groups on pristine GO. Then, we applied the MP-GO as a curing catalyst for polyimide (PI) nanocomposites. The MP-GO was found to be an effective base-catalysts for the thermal conversion of polyamic acid (PAA) precursor to PI. Interestingly, when 3 wt% of MP-GO was added to the PI matrix, the complete imidization of nanocomposites was achieved at a temperature lower than 200 °C. In addition, the PI/MP-GO nanocomposite films exhibited reinforcement of the oxygen barrier properties which were even better than those of pristine PI, due to the excellent dispersion state of MP-GO and the favorable non-covalent interaction between MP-GO and the PI matrix. Comparison to pristine PI, the oxygen permeability of nanocomposite films that contained only 1 wt% of MP-GO loading was significantly decreased, by about 80%. Furthermore, all the PI/MP-GO nanocomposites exhibited high thermal stability.

Original language	English
Pages (from-to)	509-515
Number of pages	7
Journal	Applied Surface Science
Volume	464
DOIs	https://doi.org/10.1016/j.apsusc.2018.09.086
State	Published - 15 Jan 2019

Keywords

Functionalized graphene oxide
Low temperature imidization
Oxygen barrier
Polyimide
Thermal stability

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10.1016/j.apsusc.2018.09.086

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title = "Methylpiperidine-functionalized graphene oxide for efficient curing acceleration and gas barrier of polymer nanocomposites",

abstract = "We synthesized methylpiperidine-functionalized graphene oxide (MP-GO) by introducing 4-amino-1-methylpiperidine into reactive epoxy and/or carboxylic acid groups on pristine GO. Then, we applied the MP-GO as a curing catalyst for polyimide (PI) nanocomposites. The MP-GO was found to be an effective base-catalysts for the thermal conversion of polyamic acid (PAA) precursor to PI. Interestingly, when 3 wt% of MP-GO was added to the PI matrix, the complete imidization of nanocomposites was achieved at a temperature lower than 200 °C. In addition, the PI/MP-GO nanocomposite films exhibited reinforcement of the oxygen barrier properties which were even better than those of pristine PI, due to the excellent dispersion state of MP-GO and the favorable non-covalent interaction between MP-GO and the PI matrix. Comparison to pristine PI, the oxygen permeability of nanocomposite films that contained only 1 wt% of MP-GO loading was significantly decreased, by about 80%. Furthermore, all the PI/MP-GO nanocomposites exhibited high thermal stability.",

keywords = "Functionalized graphene oxide, Low temperature imidization, Oxygen barrier, Polyimide, Thermal stability",

author = "Jin, {Jeong Un} and Lee, {Dong Hoon} and Nam, {Ki Ho} and Jaesang Yu and Kim, {Young Kwan} and Munju Goh and Kim, {Seo Gyun} and Lee, {Heon Sang} and Ku, {Bon Cheol} and You, {Nam Ho}",

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year = "2019",

month = jan,

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doi = "10.1016/j.apsusc.2018.09.086",

language = "English",

volume = "464",

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journal = "Applied Surface Science",

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T1 - Methylpiperidine-functionalized graphene oxide for efficient curing acceleration and gas barrier of polymer nanocomposites

AU - Jin, Jeong Un

AU - Lee, Dong Hoon

AU - Nam, Ki Ho

AU - Yu, Jaesang

AU - Kim, Young Kwan

AU - Goh, Munju

AU - Kim, Seo Gyun

AU - Lee, Heon Sang

AU - Ku, Bon Cheol

AU - You, Nam Ho

PY - 2019/1/15

Y1 - 2019/1/15

N2 - We synthesized methylpiperidine-functionalized graphene oxide (MP-GO) by introducing 4-amino-1-methylpiperidine into reactive epoxy and/or carboxylic acid groups on pristine GO. Then, we applied the MP-GO as a curing catalyst for polyimide (PI) nanocomposites. The MP-GO was found to be an effective base-catalysts for the thermal conversion of polyamic acid (PAA) precursor to PI. Interestingly, when 3 wt% of MP-GO was added to the PI matrix, the complete imidization of nanocomposites was achieved at a temperature lower than 200 °C. In addition, the PI/MP-GO nanocomposite films exhibited reinforcement of the oxygen barrier properties which were even better than those of pristine PI, due to the excellent dispersion state of MP-GO and the favorable non-covalent interaction between MP-GO and the PI matrix. Comparison to pristine PI, the oxygen permeability of nanocomposite films that contained only 1 wt% of MP-GO loading was significantly decreased, by about 80%. Furthermore, all the PI/MP-GO nanocomposites exhibited high thermal stability.

AB - We synthesized methylpiperidine-functionalized graphene oxide (MP-GO) by introducing 4-amino-1-methylpiperidine into reactive epoxy and/or carboxylic acid groups on pristine GO. Then, we applied the MP-GO as a curing catalyst for polyimide (PI) nanocomposites. The MP-GO was found to be an effective base-catalysts for the thermal conversion of polyamic acid (PAA) precursor to PI. Interestingly, when 3 wt% of MP-GO was added to the PI matrix, the complete imidization of nanocomposites was achieved at a temperature lower than 200 °C. In addition, the PI/MP-GO nanocomposite films exhibited reinforcement of the oxygen barrier properties which were even better than those of pristine PI, due to the excellent dispersion state of MP-GO and the favorable non-covalent interaction between MP-GO and the PI matrix. Comparison to pristine PI, the oxygen permeability of nanocomposite films that contained only 1 wt% of MP-GO loading was significantly decreased, by about 80%. Furthermore, all the PI/MP-GO nanocomposites exhibited high thermal stability.

KW - Functionalized graphene oxide

KW - Low temperature imidization

KW - Oxygen barrier

KW - Polyimide

KW - Thermal stability

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DO - 10.1016/j.apsusc.2018.09.086

M3 - Article

AN - SCOPUS:85053417713

SN - 0169-4332

VL - 464

SP - 509

EP - 515

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Methylpiperidine-functionalized graphene oxide for efficient curing acceleration and gas barrier of polymer nanocomposites

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