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Volumn 32, Issue 15, 1999, Pages 4764-4768

Rapid synthesis of hyperbranched aromatic polyetherimides

Author keywords

[No Author keywords available]

Indexed keywords

CATALYSIS; GEL PERMEATION CHROMATOGRAPHY; MOLECULAR WEIGHT; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; ORGANIC SOLVENTS; SYNTHESIS (CHEMICAL); THERMODYNAMIC STABILITY;

EID: 0033154127     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma982008n     Document Type: Article
Times cited : (80)

References (73)
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    • Applications of polyimides as photosensitive materials
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    • (b) Takekoshi, T. Applications of Polyimides as Photosensitive Materials. In Polyimides: fundamentals and applications; Ghosh, M. K., Mittal, K. L., Eds.; Marcel Dekker: New York, 1996; pp 743-758.
    • (1996) Polyimides: Fundamentals and Applications , pp. 743-758
    • Takekoshi, T.1
  • 47
    • 0002859788 scopus 로고    scopus 로고
    • Polyimides in high performance electronics packaging and optoelectronic applications
    • Ghosh, M. K., Mittal, K. L., Eds.; Marcel Dekker: New York
    • (c) Takekoshi, T. Polyimides in High Performance Electronics Packaging and Optoelectronic Applications. In Polyimides: fundamentals and applications; Ghosh, M. K., Mittal, K. L., Eds.; Marcel Dekker: New York, 1996; pp 743-758.
    • (1996) Polyimides: Fundamentals and Applications , pp. 743-758
    • Takekoshi, T.1
  • 48
    • 0002859788 scopus 로고    scopus 로고
    • Synthesis of polyimides
    • Ghosh, M. K, Mittal, K L., Eds.; Marcel Dekker: New York
    • Takekoshi, T. Synthesis of Polyimides. In Polyimides: fundamentals and applications; Ghosh, M. K, Mittal, K L., Eds.; Marcel Dekker: New York, 1996; pp 743-758.
    • (1996) Polyimides: Fundamentals and Applications , pp. 743-758
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  • 49
    • 0003089211 scopus 로고
    • Synthesis of aromatic polyimides from dianhydrides and diamines
    • Blackie, Chapmann and Hall: New York
    • Harris, F. W. Synthesis of Aromatic Polyimides from Dianhydrides and Diamines. In Polyimides; Blackie, Chapmann and Hall: New York, 1990; pp 1-37.
    • (1990) Polyimides , pp. 1-37
    • Harris, F.W.1
  • 50
    • 0002925303 scopus 로고
    • Other synthetic routes to polyimides
    • Blackie, Chapmann and Hall: New York
    • Takekoshi, T. Other Synthetic Routes to Polyimides. In Polyimides; Blackie, Chapmann and Hall: New York, 1990; pp 38-57.
    • (1990) Polyimides , pp. 38-57
    • Takekoshi, T.1
  • 61
    • 0344081703 scopus 로고    scopus 로고
    • U.S. Patent number 1993000096393
    • (b) Takekoshi, T. U.S. Patent number 1993000096393.
    • Takekoshi, T.1
  • 64
    • 0344943758 scopus 로고    scopus 로고
    • note
    • 4, 273.0437; found 273.0439): m/e 273 (100), 229 (9), 94 (6), 71 (6), 57 (8).
  • 65
    • 0344081702 scopus 로고    scopus 로고
    • note
    • 2: C, 62.24; H, 7.23; N, 2.79. Found: C, 61.93; H, 7.11; N, 2.85.
  • 69
    • 0345375089 scopus 로고    scopus 로고
    • note
    • 13C NMR, MS, and EA.
  • 70
    • 0345375087 scopus 로고    scopus 로고
    • note
    • -6]= 0.696 The DB value calculated from NMR integrations is within 0.01% of that calculated using the known molar amounts.
  • 71
    • 0345375088 scopus 로고    scopus 로고
    • note
    • The degree of branching was calculated several ways using combinations of the integration values shown in Figure 1e. All values calculated fall between 65.4% and 67.5%.
  • 72
    • 0344512887 scopus 로고    scopus 로고
    • note
    • A positive error of 2% in the integration of the methyl group protons would result in a change of extent of reaction to 96% and a change in molecular weight to 9.3 kDa. As the extent of reaction approaches 98% and higher, the error in molecular weights becomes exponentially larger (see Table 2).
  • 73
    • 0344512885 scopus 로고    scopus 로고
    • note
    • (a) The corressponding linear AB polymer derived from polymerization of 3-tert-butyldimethylsilyloxyphenyl-4-fluorophthalimide has a 10% weight loss of 582 °C. (b) The highest thermal stabilties reported in the hyperbranched polymer literature are listed in Table 3.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.