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

File Download Links for fulltext
(May Require Subscription)
Supplementary
  • Basic View
  • Metadata View
  • XML View
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, Z1 2
Yeung, KWK1
Yi, C1 2
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
2011 Impact Factor: 1.444
2011 SCImago Journal Rankings: 0.073
DOIhttp://dx.doi.org/10.1163/156855511X598669
ReferencesReferences in Scopus
DC Field
Value
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
2011 Impact Factor: 1.444
2011 SCImago Journal Rankings: 0.073
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
Author Affiliations
  1. The University of Hong Kong
  2. Hubei University