Convenient synthesis of high molecular weight poly(succinimide) by acid-catalysed polycondensation of l-aspartic acid | Health & Environmental Research Online (HERO)

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HERO ID

854213

Reference Type

Journal Article

Title

Convenient synthesis of high molecular weight poly(succinimide) by acid-catalysed polycondensation of l-aspartic acid

Author(s)

Tomida, M; Nakato, T; Matsunami, S; Kakuchi, T

Year

1997

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Journal

Polymer
ISSN: 0032-3861

Volume

Issue

Page Numbers

4733-4736

DOI

10.1016/s0032-3861(96)01079-8

Web of Science Id

WOS:A1997XN82000019

URL

http://linkinghub.elsevier.com/retrieve/pii/S0032386196010798
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Abstract

Poly(succinimide) (PSI) was synthesized by acid-catalysed polycondensation of L-aspartic acid. Polycondensation proceeded at a reaction temperarture of above ca. 160 degrees C, and a PSI with the highest weight-average molecular weigh, 64 300, was obtained using a mixed solvent of mesitylene and sulfolane (w/w, 7/3) and phosphoric acid. Poly(aspartic acid), which was produced by alkali-hydrolysis of PSI, exhibited higher biodegradability than that originated from thermally polycondensed aspartic acid. After 28 days, biochemical oxygen demand/theoretical oxygen demand (BOD/TOD) and dissolved organic carbon for catalytic PASP were 82 and 89%, respectively, and 26 and 46% for thermal PASP. (C) 1997 Elsevier Science Ltd.

Keywords

L-aspartic acid; poly(succinimide); poly(aspartic acid)