THERMAL STUDIES OF METAL POLY(STYRENE-CO-ACRYLONITRILE) .14.

被引：8

作者：

CARDENAS, G ^{[1
]}

ACUNA, J ^{[1
]}

CARBACHO, H ^{[1
]}

RODRIGUEZ, M ^{[1
]}

TAGLE, LH ^{[1
]}

机构：

[1] PONTIFICIA UNIV CATOLICA CHILE, FAC QUIM, DEPT QUIM ORGAN, SANTIAGO 22, CHILE

来源：

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS | 1994年 / 26卷 / 3-4期

关键词：

POLY(STYRENE-CO-ACRYLONITRILE); METAL; THERMAL STABILITY; KINETICS;

D O I：

10.1080/00914039408029361

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The thermal stabilities of metal poly(styrene-co-acrylonitrile) has been studied by thermogravimetry (TG) between 278 K and 823 K under nitrogen flow. The kinetic data thus obtained indicate that the thermostabilities decrease in the order: Sn-STAN > Ga-STAN > Ag-STAN > Sb-STAN > Cu-STAN > Pd-STAN > Fe-STAN > Au-STAN > Bi-STAN for high Molecular Weight (HMW) and Ag-STAN > Pd-STAN > Fe-STAN > Ga-STAN > Cu-STAN > Sb-STAN > Sn-STAN > Bi-STAN > Au-STAN for low Molecular Weight (LMW) copolymers. The thermal stability seems to be dependable on the nature of the bond established between the copolymer and the metal. Cu-copolymer exhibits the lowest Ea most probably due to their oxidation potential. On the other hand, Ag-copolymer has the highest Ea and similar to the copolymer (fraction 1). The thermal decomposition temperatures were obtained from the DTG curves. The reaction order for the thermal decomposition of these copolymers is zero. In other words, we are dealing with a single step decomposition mechanism. The pre-exponential factor, the reaction order, the decomposition temperature and the activation energy of the decomposition for metal poly(styrene-co-acrylonitrile) have been determined.

引用

页码：199 / 206

页数：8

共 16 条

[1]

CAMERON GG, 1981, J POLYM SCI PP, V19, P179

[2]

CARDENAS G, 1991, THERMOCHIM ACTA, V188, P221

[3]

CARDENAS G, 1992, THERMOCHIM ACTA, V200, P361

[4] THERMAL STUDIES OF METAL POLYSTYRENES .4. [J].

CARDENAS, G ;

RETAMAL, C ;

TAGLE, LH .

THERMOCHIMICA ACTA, 1992, 198 (01) :123-128

[5]

CARDENAS G, 1991, POLYM BULL, V26, P611

[6]

CARDENAS G, 1993, 20 JORN CHIL QUIM PU, P51

[7]

CARDENAS G, 1994, IN PRESS POLYM B

[8]

CARDENASTRIVINO G, 1990, BOL SOC CHIL QUIM, V35, P223

[9]

CARDENASTRIVINO G, 1988, BOL SOC CHIL QUIM, V33, P163

[10]

CARDENASTRIVINO G, 1987, BOL SOC CHIL QUIM, V32, P111

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