Enhanced thermal stability of poly(1,4-dioxan-2-one) in melt by adding a chelator

被引：20

作者：

Ding, Song-Dong ^{[1
]}

Wang, Yu-Zhong ^{[1
]}

机构：

[1] Sichuan Univ, Coll Chem, Ctr Degradable & Flame Retardant Polymer Mat, Chengdu 610064, Peoples R China

来源：

POLYMER DEGRADATION AND STABILITY | 2006年 / 91卷 / 10期

关键词：

poly(p-dioxanone); thermal stability; activation energy; chelator; PMBP;

D O I：

10.1016/j.polymdegradstab.2006.03.007

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thermal stability of poly(p-dioxanone) (PPDO) was investigated isothermally and non-isotherm ally under air atmosphere using thermogravimetry (TG). The addition of 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (PMBP) could enhance successfully the thermal stability of PPDO compared with those of as-prepared and purified PPDO at temperature below about 230 degrees C. The activation energies for thermal degradation (Delta E-td) were evaluated at different weight loss values from TG data using the procedure recommended by MacCallum et al. The Delta E-td values of as-prepared PPDO, purified PPDO and PPDO containing 1.0 wt% PMBP were in the ranges of 20-50, 35-60, and 56-88 U mol(-1), respectively, when they were evaluated at weight loss values of 10-80%. The remaining weights increase with the amounts of PMBP added up to 1.5 wt%. The mechanism for the enhanced thermal stability of PPDO was discussed. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2465 / 2470

页数：6

共 31 条

[1] THERMAL-DECOMPOSITION OF HYDROCARBON COPOLYMERS .1. HEAD-TO-HEAD POLY(ALPHA-METHYL STYRENE) [J].

ATKINSON, J ;

MACCALLU.JR .

EUROPEAN POLYMER JOURNAL, 1972, 8 (06) :809-&

[2]

Babanalbandi A, 1999, POLYM INT, V48, P980, DOI 10.1002/(SICI)1097-0126(199910)48:10<980::AID-PI257>3.0.CO

[3]

2-B

[4] Influence of residual monomers and metals on poly (L-lactide) thermal stability [J].

Cam, D ;

Marucci, M .

POLYMER, 1997, 38 (08) :1879-1884

[5]

Doddi N, 1977, United States patent, Patent No. [US 4032 988(A1), 4032988, 4, 032, 988]

[6]

Forschner T.C., 1997, United States Patent, Patent No. [5,652,331, 5652331]

[7]

FORSCHNER TC, 1997, Patent No. 9721753

[8] Heat capacity of poly-p-dioxanone [J].

Ishikiriyama, K ;

Pyda, M ;

Zhang, GE ;

Forschner, T ;

Grebowicz, J ;

Wunderlich, B .

JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS, 1998, B37 (01) :27-44

[9]

Kricheldorf HR, 1998, MACROMOL CHEM PHYS, V199, P1089, DOI 10.1002/(SICI)1521-3935(19980601)199:6<1089::AID-MACP1089>3.0.CO

[10]

2-S

← 1 2 3 4 →