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Citation: XU Ying-Ying, WANG Ting-Wei, JI Le. Preparation of Polybenzyl Glutamate and Its Film Properties[J]. Chinese Journal of Applied Chemistry, ;2006, 23(11): 1228-1232. shu

Preparation of Polybenzyl Glutamate and Its Film Properties

1.
Department of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009

Corresponding author: WANG Ting-Wei,
Received Date: 17 December 2005
Available Online: 3 April 2006
Fund Project: 江苏省教育厅基金资助项目(02KJB430005) (02KJB430005)

The homopolymer of benzyl L-glutamate was prepared through ring opening polymerization of N-carboxy-α-amino acid anhydride(NCA) and the mechanism of the polymerization of NCA was discussed.The product was characterized by IR spectroscopy and differential scanning calorimetry(DSC).The effect of temperature and time on the molecular weight of the poly(γ-benzyl-L-glutamate) was studied.With the increase of treatment time,the molecular weight of the product increased linearly.THF was used to prepare the film.The density of PBLG was 1.098 g/cm³.The influence of immersion time on the water absorption ratio was discussed.The result suggests that the water absorption ratio of PBLG increased with time,from 2.64% to 5.58%.The water absorption ratio tended to be stable within 48 h.Under identical conditions,the water absorption at the interface was likely to be much higher than those at other parts.
- benzyl L-glutamate,
- NCA ring opening polymerization,
- film preparation
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