Kinetics of the isothermal degradation of model polymers containing ether, ketone and sulfone groups

被引：31

作者：

Abate, L ^{[1
]}

Blanco, I ^{[1
]}

Orestano, A ^{[1
]}

Pollicino, A ^{[1
]}

Recca, A ^{[1
]}

机构：

[1] Univ Catania, Dipartimento Metodol Fis & Chim Ingn, I-95125 Catania, Italy

来源：

POLYMER DEGRADATION AND STABILITY | 2005年 / 87卷 / 02期

关键词：

polyetherketones; polyethersulfones; kinetics of degradation;

D O I：

10.1016/j.polymdegradstab.2004.06.011

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 kinetics of isothermal degradation of four model polymers containing ether, ketone and sulfone groups in the polymer chain was studied in order to investigate the influence of various groups on the apparent activation energy values (E-a) of degradation. Isothermal experiments were carried out in both flowing nitrogen and static air. Degradation E-a values were determined by both a literature method and a new method we set up recently and were compared with each other and with those previously obtained by us in the scanning mode. The results are discussed and a kinetic stability classification among various groups (sulfone > ketone > ether) is obtained, which is interpreted on the basis of the percentage of double-bond character of chain bonds. The picture of results confirmed the reliability of our method for deter-mining E-a values of isothermal degradation directly from experimental weight loss data. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：271 / 278

页数：8

共 28 条

[1] Kinetic study of the thermal degradation of some poly(arylenether)s containing naphthalene units [J].

Abate, L ;

Calanna, S ;

Di Pasquale, G ;

Pollicino, A .

POLYMER, 2000, 41 (03) :959-964

[2] Thermal behavior of some polyarylene ethers: A comparative study of the kinetics of degradation [J].

Abate, L ;

Calanna, S ;

Pollicino, A ;

Recca, A .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 1997, 198 (05) :1437-1454

[3] Kinetic study of the thermal and oxidative degradations of poly(arylenether)s containing quinoline units [J].

Abate, L ;

Bottino, FA ;

Calanna, S ;

Pollicino, A .

POLYMER, 1999, 40 (10) :2719-2726

[4] Kinetic study of the degradation of a new aromatic polyethersulfone [J].

Abate, L ;

Pappalardo, A ;

Recca, A .

POLYMER ENGINEERING AND SCIENCE, 2000, 40 (05) :1114-1121

[5] Thermal stability of a novel poly(ether ether ketone ketone) (PK99) [J].

Abate, L ;

Calanna, S ;

Pollicino, A ;

Recca, A .

POLYMER ENGINEERING AND SCIENCE, 1996, 36 (13) :1782-1788

[6] Evaluation of the influence of various (ether, ketone and sulfone) groups on the apparent activation energy values of polymer degradation [J].

Abate, L ;

Blanco, I ;

Orestano, A ;

Pollicino, A ;

Recca, A .

POLYMER DEGRADATION AND STABILITY, 2003, 80 (02) :333-338

[7] Determination of degradation apparent activation energy values of polymers - Regression of kinetic parameters derived from TG data [J].

Abate, L ;

Blanco, I ;

Pollicino, A ;

Recca, A .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2002, 70 (01) :63-73

[8] The isothermal degradation of some polyetherketones: a comparative kinetic study between long-term and short-term experiments [J].

Abate, L ;

Blanco, I ;

Motta, O ;

Pollicino, A ;

Recca, A .

POLYMER DEGRADATION AND STABILITY, 2002, 75 (03) :465-471

[9] A kinetic study of the thermal and oxidative degradations of a new poly(arylene)ether copolymer [J].

Abate, L ;

Blanco, I ;

Pappalardo, A ;

Pollicino, A .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2001, 65 (02) :373-380

[10]

[Anonymous], 1984, US MAN TA 3000 SYST

← 1 2 3 →