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Abstract�� Poly( d,l -lactide) was synthesized with the ZnO,SnCl\-2 or Stannous Octoate as catalyst,respectively. The molecular weight was measured by chemical titration and viscosity. The resultant poly( d,l -lactide) was characterized by FTIR and DSC. The result shows the polymer is amorphous,and Tg is 53.3��.

Keywords��

Received 2002-01-15; published 2002-01-15

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ԭ��,��ƽ,��,��,ʢ��.��d,l-��ĺϳ�[J]. ��ѧ��ҵ�빤��, 2002,19(1): 124-128

YUAN Xu-bo, LIU Ping, ZHU Deng-wu, LI Er-qiu,SHENG Jing .Synthesis of Poly( d,l -lactide)[J]. Chemcial Industry and Engineering, 2002,19(1): 124-128

[1]	��ս.ҽ��ｵ��ϡ��ἰ�乲��[J].��ҽѧ��ѧ��־,1998,10(2):183-193
[2]	�￡ȫ,��ǿ,��ͤ.��ͪ��߻��ϳɾ��[J].��ܸ߷��ѧ��,1996,9(2):252-255.
[3]	��֮��,�￡ȫ,��,��.ϡ��λ�߻��ϳɾ��[J].��ѧѧ��,1990,(48):686-689.
[4]	VANDIJKJ,SMITJ.Characterizationofpoly(d,l-lacticacid)bygelpermeationchromatography[J].JPolymSci:PolymChemEd,1983,(21):197-208.
[5]	��,��,�⡡��,��.ҽ�þ��ĺϳɼ��Ͳ��ܵĲⶨ[J].�߷��Ӳ��Ͽ�ѧ�빤��,1993,(2):24-28.
[6]	KISTERG ,CASSANASG ,VERTM .Effectofmorphology,conformationandconfigurationontheIRandRamanspectraofvariouspoly(lacticacid)s[J].Polymer.1998,39(2):267-273
[7]	DIETERB .Chemicalsynthesisofpolylactideanditscopolymerformedicalapplications[J].PolymerDegradationandStability,1998,59:129-135.
[8]	�Ź��,��Ԫ,��µ�,��.��о��չ[J].��ѧ��չ,2000,12(1):89-102