Syntheses and characterizations of cardo polyimides based on new spirobifluorene diamine monomer

Pushan Wen; Youngkuk Kim; Hyunaee Chun; Si Young Yang; Myong Hoon Lee

doi:10.1016/j.matchemphys.2013.02.057

Syntheses and characterizations of cardo polyimides based on new spirobifluorene diamine monomer

Pushan Wen
, Youngkuk Kim
, Hyunaee Chun
, Si Young Yang
, Myong Hoon Lee^*

^*Corresponding author for this work

Major of Mineral Resources and Energy Engineering

Research output: Contribution to journal › Journal article › peer-review

34 Scopus citations

Abstract

We synthesized a new spirobifluorene diamine monomer, 2,7-diamino-9,9- spirobifluorene (2,7-DASBF), in which two fluorene units are perpendicularly linked by the 'spiro' sp³ carbon, and two diamine groups are attached on the same fluorene ring. Two cardo polyimides were prepared from the polymerization of 2,7-DASBF with 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (PI-1) or pyromellitic dianhydride (PI-2). The chemical structures of monomer and polymers were characterized by various spectroscopic techniques. Thermal stability, coefficients of thermal expansion and crystallinity of the resulting polyimides were investigated.

Original language	English
Pages (from-to)	923-930
Number of pages	8
Journal	Materials Chemistry and Physics
Volume	139
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2013.02.057
State	Published - 2013.05.15

Keywords

Chemical synthesis
Polymer
Thermal expansion
Thermo-mechanical analysis

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Physics & Astronomy

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10.1016/j.matchemphys.2013.02.057

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title = "Syntheses and characterizations of cardo polyimides based on new spirobifluorene diamine monomer",

abstract = "We synthesized a new spirobifluorene diamine monomer, 2,7-diamino-9,9- spirobifluorene (2,7-DASBF), in which two fluorene units are perpendicularly linked by the 'spiro' sp3 carbon, and two diamine groups are attached on the same fluorene ring. Two cardo polyimides were prepared from the polymerization of 2,7-DASBF with 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (PI-1) or pyromellitic dianhydride (PI-2). The chemical structures of monomer and polymers were characterized by various spectroscopic techniques. Thermal stability, coefficients of thermal expansion and crystallinity of the resulting polyimides were investigated.",

keywords = "Chemical synthesis, Polymer, Thermal expansion, Thermo-mechanical analysis",

author = "Pushan Wen and Youngkuk Kim and Hyunaee Chun and Yang, \{Si Young\} and Lee, \{Myong Hoon\}",

year = "2013",

month = may,

day = "15",

doi = "10.1016/j.matchemphys.2013.02.057",

language = "English",

volume = "139",

pages = "923--930",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

number = "2-3",

}

TY - JOUR

T1 - Syntheses and characterizations of cardo polyimides based on new spirobifluorene diamine monomer

AU - Wen, Pushan

AU - Kim, Youngkuk

AU - Chun, Hyunaee

AU - Yang, Si Young

AU - Lee, Myong Hoon

PY - 2013/5/15

Y1 - 2013/5/15

N2 - We synthesized a new spirobifluorene diamine monomer, 2,7-diamino-9,9- spirobifluorene (2,7-DASBF), in which two fluorene units are perpendicularly linked by the 'spiro' sp3 carbon, and two diamine groups are attached on the same fluorene ring. Two cardo polyimides were prepared from the polymerization of 2,7-DASBF with 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (PI-1) or pyromellitic dianhydride (PI-2). The chemical structures of monomer and polymers were characterized by various spectroscopic techniques. Thermal stability, coefficients of thermal expansion and crystallinity of the resulting polyimides were investigated.

AB - We synthesized a new spirobifluorene diamine monomer, 2,7-diamino-9,9- spirobifluorene (2,7-DASBF), in which two fluorene units are perpendicularly linked by the 'spiro' sp3 carbon, and two diamine groups are attached on the same fluorene ring. Two cardo polyimides were prepared from the polymerization of 2,7-DASBF with 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (PI-1) or pyromellitic dianhydride (PI-2). The chemical structures of monomer and polymers were characterized by various spectroscopic techniques. Thermal stability, coefficients of thermal expansion and crystallinity of the resulting polyimides were investigated.

KW - Chemical synthesis

KW - Polymer

KW - Thermal expansion

KW - Thermo-mechanical analysis

UR - https://www.scopus.com/pages/publications/84875965885

U2 - 10.1016/j.matchemphys.2013.02.057

DO - 10.1016/j.matchemphys.2013.02.057

M3 - Journal article

AN - SCOPUS:84875965885

SN - 0254-0584

VL - 139

SP - 923

EP - 930

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 2-3

ER -

Syntheses and characterizations of cardo polyimides based on new spirobifluorene diamine monomer

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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