Heat-resistant and soluble fluorinated poly(amide imide)s based on non-coplanar ortho-linked diimide-dicarboxylic acid

被引:33
作者
Abouzari-Lotf, Ebrahim [1 ]
Shockravi, Abbas [2 ]
Javadi, Ali [2 ]
机构
[1] Tarbiat Moallem Univ Branch, ACECR, Membrane Res Grp, Tehran, Iran
[2] Tarbiat Moallem Univ, Fac Chem, Tehran 15614, Iran
关键词
Fluorinated poly(amide imide)s; Non-coplanar; Thermal stability; Improved solubility; Dielectric constant; HYPERVALENT MOLECULES; AROMATIC POLYAMIDES; POLYIMIDES; SULFOXIDE; BENZENE;
D O I
10.1016/j.polymdegradstab.2011.01.004
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A series of novel fluorinated heat-resistant poly(amide imide)s (PAIS) based on non-coplanar diimide-diacid monomer (DIDA) were synthesized and characterized. The poly(amide imide)s were obtained in high yields and possessed inherent viscosities in the range of 0.47-0.91 dL g(-1). All of the polymers were amorphous in nature, showed outstanding solubility and could be readily soluble in common organic solvents such as N,N-dimethylacetamide, N-methyl-2-pyrrolidinoned, dimethyl sulfoxide. N,N-dimethylformamide, pyridine and tetrahydrofuran. Glass transition temperatures were in the range of 221-263 degrees C, as determined by differential scanning calorimetry. Degradation temperatures for 10% weight loss occurred all above 520 degrees C and char yields was more than 50% at 700 degrees C in nitrogen atmosphere. Moreover, these PAIs possessed low refractive indexes (n = 1.58-1.59), birefringence (Delta n = 0.008-0.013), and dielectric constants (epsilon approximate to 2.5) due to the trifluoromethyl pendent groups and ortho-catenated aromatic rings that interrupt chain packing and increase free volume. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1022 / 1028
页数:7
相关论文
共 39 条
  • [1] Abadie M.J.M., 1991, Polyimides and Other High-Temperature Polymers
  • [2] Coloration of aromatic polyimides and electronic properties of their source materials
    Ando, S
    Matsuura, T
    Sasaki, S
    [J]. POLYMER JOURNAL, 1997, 29 (01) : 69 - 76
  • [3] Novel soluble thermally stable silane-containing aromatic polyimides with reduced dielectric constant
    Babanzadeh, Samal
    Mahjoub, Ali Reza
    Mehdipour-Ataei, Shahram
    [J]. POLYMER DEGRADATION AND STABILITY, 2010, 95 (12) : 2492 - 2498
  • [4] Synthesis and properties of fluorinated polyimides.: 3.: Derived from novel 1,3-bis[3′-trifluoromethyl-4′(4"-amino benzoxy) benzyl] benzene and 4,4-bis [3-′trifluoromethyl-4′(4-amino benzoxy) benzyl] biphenyl
    Banerjee, S
    Madhra, MK
    Salunke, AK
    Jaiswal, DK
    [J]. POLYMER, 2003, 44 (03) : 613 - 622
  • [5] PARALINKED AROMATIC POLY(AMIC ETHYL ESTER)S - PRECURSORS TO RODLIKE AROMATIC POLYIMIDES .1. SYNTHESIS AND IMIDIZATION STUDY
    BECKER, KH
    SCHMIDT, HW
    [J]. MACROMOLECULES, 1992, 25 (25) : 6784 - 6790
  • [6] BOSE D, 1992, J POLYM SCI POL LETT, V30, P1321
  • [7] AROMATIC POLYIMIDES
    BOWER, GM
    FROST, LW
    [J]. JOURNAL OF POLYMER SCIENCE PART A-GENERAL PAPERS, 1963, 1 (10): : 3135 - &
  • [8] Chemical bonding in oxofluorides of hypercoordinate sulfur
    Cunningham, TP
    Cooper, DL
    Gerratt, J
    Karadakov, PB
    Raimondi, M
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (13): : 2247 - 2254
  • [9] Chemical bonding in hypervalent molecules revised.: 2.: Application of the atoms in molecules theory to Y2XZ and Y2XZ2 (Y = H, F, CH3; X = O, S, Se; Z = O, S) compounds
    Dobado, JA
    Martínez-García, H
    Molina, JM
    Sundberg, MR
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (13) : 3156 - 3164
  • [10] The influence of multiple ortho-substituted phenylenes on the nature of poly(ether imide)s
    Eastmond, GC
    Paprotny, J
    [J]. POLYMER, 2004, 45 (04) : 1073 - 1078