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Article: Optical transparency and light colour of highly soluble fluorinated polyimides derived from a novel pyridine-containing diamine m, p-3FPAPP and various aromatic dianhydrides
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TitleOptical transparency and light colour of highly soluble fluorinated polyimides derived from a novel pyridine-containing diamine m, p-3FPAPP and various aromatic dianhydrides
 
AuthorsYan, S2
Chen, W2
Yan, W2
Huang, M2
Chen, C2
Xu, Z2 1
Yeung, KWK1
Yi, C2 1
 
Keywordsfluorinated polyimides
light color
Pyridine-containing diamine
solubility
thermal stability
transparency
 
Issue Date2011
 
PublisherV S P. The Journal's web site is located at http://www.brill.nl/m_catalogue_sub6_id9721.htm
 
CitationDesigned Monomers And Polymers, 2011, v. 14 n. 6, p. 579-592 [How to Cite?]
DOI: http://dx.doi.org/10.1163/156855511X598669
 
AbstractA novel pyridine-containing aromatic diamine monomer, 4-(4- trifluoromethylphenyl)-2,6-bis[3-(4-aminophenoxy)phenyl]pyridine (m,p-3FPAPP), was successfully synthesized by a modified Chichibabin reaction of 4-trifluoromethylbenzaldehyde and a substituted acetophenone, 3-(4-nitrophenoxy)acetophenone (m,p-NPAP), followed by a reduction of the resulting dinitro compound 4-(4-trifluoromethylphenyl)-2,6bis[3-(4-nitrophenoxy) phenyl] pyridine (m,p-3FPNPP) with Pd/C and hydrazine monohydrate. The aromatic diamine was employed to synthesize a series of pyridine-containing polyimides by polycondensation with various aromatic dianhydrides in N,N-dimethylformamide (DMF) via the conventional two-step method, and further thermal or chemical imidization forming polyimides. The inherent viscosities of the resulting poly(amic acid)s and polyimides were 0.62-0.89 and 0.58-0.69 dl/g, and most of the polyimides obtained by chemical imidization were readily soluble in common organic solvents such as DMF, N,N-dimethylacetamide (DMAc), N-methyl-2- pyrrolidone (NMP) and tetrahydrofuran (THF). Meanwhile, strong and flexible polyimide films were obtained, which had good thermal stability, with a glass transition temperature (T g) of 234.4-246.6°C and the temperature at 10% weight loss of 561.4-600.6°C in nitrogen atmosphere, and good optical transparency with the cut-off wavelengths of 369-378 nm, as well as outstanding mechanical properties with tensile strengths of 89.5-96.4 MPa, a tensile modulus of 1.52-1.63 GPa and elongation-at-break of 7.2-8.7%. The polyimide films also were found to possess low water uptake (0.61-0.79%). © 2011 Koninklijke Brill NV, Leiden.
 
ISSN1385-772X
2013 Impact Factor: 2.210
2013 SCImago Journal Rankings: 0.612
 
DOIhttp://dx.doi.org/10.1163/156855511X598669
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorYan, S
 
dc.contributor.authorChen, W
 
dc.contributor.authorYan, W
 
dc.contributor.authorHuang, M
 
dc.contributor.authorChen, C
 
dc.contributor.authorXu, Z
 
dc.contributor.authorYeung, KWK
 
dc.contributor.authorYi, C
 
dc.date.accessioned2012-08-16T05:55:30Z
 
dc.date.available2012-08-16T05:55:30Z
 
dc.date.issued2011
 
dc.description.abstractA novel pyridine-containing aromatic diamine monomer, 4-(4- trifluoromethylphenyl)-2,6-bis[3-(4-aminophenoxy)phenyl]pyridine (m,p-3FPAPP), was successfully synthesized by a modified Chichibabin reaction of 4-trifluoromethylbenzaldehyde and a substituted acetophenone, 3-(4-nitrophenoxy)acetophenone (m,p-NPAP), followed by a reduction of the resulting dinitro compound 4-(4-trifluoromethylphenyl)-2,6bis[3-(4-nitrophenoxy) phenyl] pyridine (m,p-3FPNPP) with Pd/C and hydrazine monohydrate. The aromatic diamine was employed to synthesize a series of pyridine-containing polyimides by polycondensation with various aromatic dianhydrides in N,N-dimethylformamide (DMF) via the conventional two-step method, and further thermal or chemical imidization forming polyimides. The inherent viscosities of the resulting poly(amic acid)s and polyimides were 0.62-0.89 and 0.58-0.69 dl/g, and most of the polyimides obtained by chemical imidization were readily soluble in common organic solvents such as DMF, N,N-dimethylacetamide (DMAc), N-methyl-2- pyrrolidone (NMP) and tetrahydrofuran (THF). Meanwhile, strong and flexible polyimide films were obtained, which had good thermal stability, with a glass transition temperature (T g) of 234.4-246.6°C and the temperature at 10% weight loss of 561.4-600.6°C in nitrogen atmosphere, and good optical transparency with the cut-off wavelengths of 369-378 nm, as well as outstanding mechanical properties with tensile strengths of 89.5-96.4 MPa, a tensile modulus of 1.52-1.63 GPa and elongation-at-break of 7.2-8.7%. The polyimide films also were found to possess low water uptake (0.61-0.79%). © 2011 Koninklijke Brill NV, Leiden.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationDesigned Monomers And Polymers, 2011, v. 14 n. 6, p. 579-592 [How to Cite?]
DOI: http://dx.doi.org/10.1163/156855511X598669
 
dc.identifier.doihttp://dx.doi.org/10.1163/156855511X598669
 
dc.identifier.epage592
 
dc.identifier.hkuros204522
 
dc.identifier.issn1385-772X
2013 Impact Factor: 2.210
2013 SCImago Journal Rankings: 0.612
 
dc.identifier.issue6
 
dc.identifier.scopuseid_2-s2.0-80055068272
 
dc.identifier.spage579
 
dc.identifier.urihttp://hdl.handle.net/10722/159747
 
dc.identifier.volume14
 
dc.languageeng
 
dc.publisherV S P. The Journal's web site is located at http://www.brill.nl/m_catalogue_sub6_id9721.htm
 
dc.publisher.placeNetherlands
 
dc.relation.ispartofDesigned Monomers and Polymers
 
dc.relation.referencesReferences in Scopus
 
dc.subjectfluorinated polyimides
 
dc.subjectlight color
 
dc.subjectPyridine-containing diamine
 
dc.subjectsolubility
 
dc.subjectthermal stability
 
dc.subjecttransparency
 
dc.titleOptical transparency and light colour of highly soluble fluorinated polyimides derived from a novel pyridine-containing diamine m, p-3FPAPP and various aromatic dianhydrides
 
dc.typeArticle
 
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<description.abstract>A novel pyridine-containing aromatic diamine monomer, 4-(4- trifluoromethylphenyl)-2,6-bis[3-(4-aminophenoxy)phenyl]pyridine (m,p-3FPAPP), was successfully synthesized by a modified Chichibabin reaction of 4-trifluoromethylbenzaldehyde and a substituted acetophenone, 3-(4-nitrophenoxy)acetophenone (m,p-NPAP), followed by a reduction of the resulting dinitro compound 4-(4-trifluoromethylphenyl)-2,6bis[3-(4-nitrophenoxy) phenyl] pyridine (m,p-3FPNPP) with Pd/C and hydrazine monohydrate. The aromatic diamine was employed to synthesize a series of pyridine-containing polyimides by polycondensation with various aromatic dianhydrides in N,N-dimethylformamide (DMF) via the conventional two-step method, and further thermal or chemical imidization forming polyimides. The inherent viscosities of the resulting poly(amic acid)s and polyimides were 0.62-0.89 and 0.58-0.69 dl/g, and most of the polyimides obtained by chemical imidization were readily soluble in common organic solvents such as DMF, N,N-dimethylacetamide (DMAc), N-methyl-2- pyrrolidone (NMP) and tetrahydrofuran (THF). Meanwhile, strong and flexible polyimide films were obtained, which had good thermal stability, with a glass transition temperature (T g) of 234.4-246.6&#176;C and the temperature at 10% weight loss of 561.4-600.6&#176;C in nitrogen atmosphere, and good optical transparency with the cut-off wavelengths of 369-378 nm, as well as outstanding mechanical properties with tensile strengths of 89.5-96.4 MPa, a tensile modulus of 1.52-1.63 GPa and elongation-at-break of 7.2-8.7%. The polyimide films also were found to possess low water uptake (0.61-0.79%). &#169; 2011 Koninklijke Brill NV, Leiden.</description.abstract>
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Author Affiliations
  1. The University of Hong Kong
  2. Hubei University