Aminopropyl-Terminated Polydimethylsiloxane과 Trichlorogermyl 곁가지 그룹을 갖는 Polyamide 블록공중합체의 합성, 구조분석 및 열적거동

RohamaGill; M.Mazhar; SumeraMahboob; MuhammadSiddiq; Rohama Gill; M. Mazhar; Sumera Mahboob; Muhammad Siddiq

Polymer(Korea), Vol.32, No.3, 239-245, May, 2008

Synthesis, Structural Characterization and Thermal Behaviour of Block Copolymers of Aminopropyl-Terminated Polydimethylsiloxane and Polyamide Having Trichlorogermyl Pendant Group

RohamaGill, M.Mazhar^†, SumeraMahboob, MuhammadSiddiq

Quaid-i-Azam University Department of Chemistry, Islamabad 45320

Rohama Gill, M. Mazhar^†, Sumera Mahboob, and Muhammad Siddiq

Quaid-i-Azam University, Department of Chemistry, Islamabad 45320, Pakistan

E-mail:

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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[2] Rudolph R, Abraham J, Vechoine T, Guber S, Woodward M, Plast. Reconstr. Surg., 62, 185 (1978)

[3] Hartman LC, Bessette RW, Baier RE, Meyer AE, Wirth J, J. Biomed. Mater. Res., 22, 475 (1988)

[4] Noshay A, McGrath JE, Block Copolymer, Overview and Critical Survey, Academic Press, New York (1977)

[5] Speck SB, J. Org. Chem., 18, 1689 (1953)

[6] Massey JA, Temple K, Cao L, Rharbi Y, Raez J, Winnik MA, Manners I, J. Am. Chem. Soc., 122(47), 11577 (2000)

[7] Kang EC, Kaneko T, Shino D, Akashi M, J. Polym. Sci., 41, 841 (2002)

[8] Tagle LH, Diaz FR, Vega JC, alenzuela VP, Eur. Polym. J., 39, 40 (2003)

[9] Tagle LH, Diaz FR, Radic D, Opazo A, Espinoza JM, J. Inorg. Organomet. Polym., 10, 73 (2000)

[10] Terraza CA, Tagle LH, Leiva A, Polym. Bull., 55(4), 277 (2005)

[11] Peckham TJ, Massey JA, Edwards M, Manners I, Foucher DA, Macromolecules, 29(7), 2396 (1996)

[12] Ito H, Masuda T, Higashimura T, J. Polym. Sci. A: Polym. Chem., 34(14), 2925 (1996)

[13] Mochida K, Nagano S, Kawata H, Wakasa M, Hayashi H, J. Org. Chem., 542, 75 (1997)

[14] Kausar T, Mazhar M, Ahmed M, Rehman U, Hussain N, Main Group Metal Chemistry, 25, 711 (2002)

[15] Din I, Molloy KC, Mazhar M, Ali S, Dastgir S, Mahan MF, Appl. Organomet. Chem., 17, 781 (2003)

[16] Din I, Mazhar M, Khan KM, Mahon MF, Molloy KC, J. Org. Chem., 689, 899 (2004)

[17] Decher G, Science, 277(5330), 1232 (1997)

[18] Schneider G, Decher G, Nano Lett., 4, 10 (2004)

[19] Parrin DD, Armarego LF, Purification of Laboratory Chemicals, 3rd Ed., Butterworths, Heinemann Oxford (1997)

[20] Mironov VF, Gar TK, J. Organomet. Chem. Rev., 12, 365 (1989)

[21] Silverstein RM, Webster FX, Spectroscopic Identification of Organic Compound, John Wiley & Sons, 6th Ed., New York (1998)

[22] Kausar T, Mazhar M, Shah GB, Ali M, Ali S, Main Group Metal Chemistry, 23, 351 (2000)

[23] Cazacu M, Vlad A, Marcu M, Racles C, Airinei A, Munteanu G, Macromolecules, 39(11), 3786 (2006)

[24] Tagle LH, Terraza C, Valenzuela P, Leiva A, Urzua M, Thermochim. Acta, 425(1-2), 115 (2005)

[25] Young RJ, Introduction to Polymers, Introduction to Polymers (1981)

[26] Hsiao SH, Huang TJL, Polym. J., 34, 225 (2002)

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[28] Grassie N, Macfarlane IG, Eur. Polym. J., 14, 875 (1978)

[29] Preston J, J. Polym. Sci. A-1, 4, 529 (1966)

[30] Dobinson F, Preston J, J. Polym. Sci., A-1, 4, 2093 (1966)

[31] Preston J, Black WB, J. Polym. Sci. C, 19, 7 (1967)

[32] Mazhar M, Zulifiqar M, Piracha A, Ali S, Ahmed A, J. Chem. Soc.-Perkin Trans. 1, 12, 225 (1990)

[33] Thomas TH, Kendrick TC, J. Polym. Sci., A-2, 7, 537 (1969)

[34] Conley RT, Thermal Stability of Polymers, Marcel Dekker, Inc., New York (1970)

[35] Horowitz HH, Metzger G, J. Anal. Chem., 35, 1464 (1963)