Article
  • Synthesis, Structural Characterization and Thermal Behaviour of Block Copolymers of Aminopropyl-Terminated Polydimethylsiloxane and Polyamide Having Trichlorogermyl Pendant Group
  • Gill R, Mazhar M, Mahboob S, Siddiq M
  • Aminopropyl-Terminated Polydimethylsiloxane과 Trichlorogermyl 곁가지 그룹을 갖는 Polyamide 블록공중합체의 합성, 구조분석 및 열적거동
  • Gill R, Mazhar M, Mahboob S, Siddiq M
Abstract
Block copolymers of the general formula [(-CO-R′-CO-HN-Ar-NH-CO-R'-CO)xNH(CH2)3-(Me2SiO)y(CH2)3NH2]n, [n＝18.00 to 1175.0] where R′＝CH2C (CH2GeCl3);CH2CHGeCl3CH2;and Ar＝ -C6H4;-(o.CH3C6H4)2;-o.CH3OC6H4)2; -(o.CH3C6H4) were prepared by a polycondensation reaction of polyamide containing a pendant trichlorogermyl group and terminal acid chloride Cl(-CO-R′-CO.NHAr-NH-CO-R′-CO-)xCl with aminopropyl-terminated polydimethylsiloxane H2N(CH2)3(Me2SiO)y-(CH2)3NH2], (PDMS). These polymers were characterized by elemental analysis, Tg, FT-IR, 1H-NMR, solid state 13C-NMR, and molecular weight determination. The thermal stability of these copolymers was examined using thermal analysis techniques, such as TGA and DSC. Their molecular weights as determined by laser light scattering technique ranged 5.13×105 to 331×105 g/mol. These polymers display their Tg in the range of 337 to 393 ℃ with an average decomposition temperature at 582 ℃.

Keywords: synthesis; organogermanium polyamide; aminopropyl-terminated polydimethylsiloxane; block copolymer; thermal characterization

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2008; 32(3): 239-245

    Published online May 25, 2008

  • Received on Jan 3, 2008
  • Accepted on Feb 21, 2008