The melting behaviour of poly(3-hydroxybutyrate) by DSC. Reproducibility study

被引：55

作者：

Wellen, Renate M. R. ^{[1
]}

Rabello, Marcelo S. ^{[2
]}

Fechine, Guilhermino J. M. ^{[3
]}

Canedo, Eduardo L. ^{[1
]}

机构：

[1] Pernambuco Inst Technol, BR-58109970 Recife, PE, Brazil

[2] Fed Univ Campine Grande, Campina Grande, PB, Brazil

[3] Presbiterian Univ Mackenzie, Sao Paulo, Brazil

来源：

POLYMER TESTING | 2013年 / 32卷 / 02期

关键词：

PHB; DSC; Melting; Reproducibility; CRYSTALLIZATION BEHAVIOR; THERMAL HISTORY; MORPHOLOGY; POLYPROPYLENE; POLY(ETHYLENE-TEREPHTHALATE); BIODEGRADATION; COPOLYESTERS; BLENDS; PHB;

D O I：

10.1016/j.polymertesting.2012.11.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This work is concerned with the melting behaviour and accuracy of differential scanning calorimeter (DSC) analyses of poly(3-hydroxybutyrate) (PHB), a semi-crystalline thermoplastic polymer completely biodegradable and biocompatible, and obtained from renewable resources. Melting parameters of PHB were determined for the first fusion event applying standard experimental procedures for thermal analysis, using heating rates ranging between 1 degrees C/min and 20 degrees C/min. The analyses of DSC energy flow scans showed a complex melting peak that may be resolved into three elementary peaks having different intensities at different melting temperatures. Peak temperatures depend on heating rate, while the total crystallinity detected was independent of the rate. A study of 24 DSC runs showed good temperature reproducibility (+/- 0.5 degrees C), but poor reproducibility of mass crystallinity (+/- 10%). (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：215 / 220

页数：6

共 29 条

[1] CRYSTALLIZATION AND MORPHOLOGY OF A BACTERIAL THERMOPLASTIC - POLY-3-HYDROXYBUTYRATE [J].

BARHAM, PJ ;

KELLER, A ;

OTUN, EL ;

HOLMES, PA .

JOURNAL OF MATERIALS SCIENCE, 1984, 19 (09) :2781-2794

[2] ON THE INTERPRETATION OF MULTIPLE MELTING PEAKS IN POLY(ETHER ETHER KETONE) [J].

BLUNDELL, DJ .

POLYMER, 1987, 28 (13) :2248-2251

[3] Biodegradation and physical evaluation of PHB packaging [J].

Bucci, D. Z. ;

Tavares, L. B. B. ;

Sell, I. .

POLYMER TESTING, 2007, 26 (07) :908-915

[4] Multiple melting and crystal annealing of poly(ethylene terephthalate) in its blends with poly(ether imide) [J].

Chen, HL ;

Hwang, JC ;

Chen, CC .

POLYMER, 1996, 37 (24) :5461-5467

[5]

El-Hadi A, 2002, MACROMOL MATER ENG, V287, P363, DOI 10.1002/1439-2054(20020501)287:5<363::AID-MAME363>3.0.CO

[6]

2-D

[7] STRUCTURES AND PROPERTIES OF INJECTION MOLDINGS OF CRYSTALLIZATION NUCLEATOR-ADDED POLYPROPYLENES .1. STRUCTURE PROPERTY RELATIONSHIPS [J].

FUJIYAMA, M ;

WAKINO, T .

JOURNAL OF APPLIED POLYMER SCIENCE, 1991, 42 (10) :2739-2747

[8] MORPHOLOGY AND MELTING BEHAVIOR OF SEMI-CRYSTALLINE POLY(ETHYLENE-TEREPHTHALATE) .1. ISOTHERMALLY CRYSTALLIZED PET [J].

GROENINCKX, G ;

REYNAERS, H ;

BERGHMANS, H ;

SMETS, G .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1980, 18 (06) :1311-1324

[9] Melting and thermal history of poly(hydroxybutyrate-co-hydroxyvalerate) using step-scan DSC [J].

Gunaratne, LMWK ;

Shanks, RA .

THERMOCHIMICA ACTA, 2005, 430 (1-2) :183-190

[10] Environmental analysis of plastic production processes:: Comparing petroleum-based polypropylene and polyethylene with biologically-based poly-β-hydroxybutyric acid using life cycle analysis [J].

Harding, K. G. ;

Dennis, J. S. ;

von Blottnitz, H. ;

Harrison, S. T. L. .

JOURNAL OF BIOTECHNOLOGY, 2007, 130 (01) :57-66

← 1 2 3 →