Miscibility and properties of poly(L-lactic acid)/poly(butylene terephthalate) blends

被引：35

作者：

Di Lorenzo, Maria Laura ^{[1
]}

Rubino, Paolo ^{[1
]}

Cocca, Mariacristina ^{[1
]}

机构：

[1] CNR, Ist Chim & Tecnol Polimeri, I-80078 Pozzuoli, NA, Italy

来源：

EUROPEAN POLYMER JOURNAL | 2013年 / 49卷 / 10期

关键词：

Poly(L-lactide); Poly(butylene terephthalate); Miscibility; Compatibility; Morphology; TEMPERATURE-MODULATED CALORIMETRY; POLY(BUTYLENE TEREPHTHALATE); CRYSTALLIZATION BEHAVIOR; TRANS-ESTERIFICATION; POLYMER; COMPATIBILIZATION; COPOLYESTERS; ACID; DEGRADATION; SUCCINATE);

D O I：

10.1016/j.eurpolymj.2013.06.038

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Binary blends of poly(L-lactide) (PLLA) and poly(butylene terephthalate) (PBT) containing PLLA as major component were prepared by melt mixing. The two polymers are immiscible, but display compatibility, probably due to the establishment of interactions between the functional groups of the two polyesters upon melt mixing. Electron microscopy analysis revealed that in the blends containing up to 20% of poly(butylene terephthalate), PBT particles are finely dispersed within the PLLA matrix, with a good adhesion between the phases. The PLLA/PBT 60/40 blend presents a co-continuous multi-level morphology, where PLLA domains, containing dispersed PBT units, are embedded in a PBT matrix. The varied morphology affects the mechanical properties of the material, as the 60140 blend displays a largely enhanced resistance to elongation, compared to the blends with lower PBT content. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：3309 / 3317

页数：9

共 61 条

[1] An overview of polylactides as packaging materials [J].

Auras, R ;

Harte, B ;

Selke, S .

MACROMOLECULAR BIOSCIENCE, 2004, 4 (09) :835-864

[2]

Bogaert JC, 2000, MACROMOL SYMP, V153, P287, DOI 10.1002/1521-3900(200003)153:1<287::AID-MASY287>3.0.CO

[3]

2-E

[4]

Brandrup J., 1999, Polymer Handbook, VII

[5] Processing of poly(lactic acid): Characterization of chemical structure, thermal stability and mechanical properties [J].

Carrasco, F. ;

Pages, P. ;

Gamez-Perez, J. ;

Santana, O. O. ;

Maspoch, M. L. .

POLYMER DEGRADATION AND STABILITY, 2010, 95 (02) :116-125

[6] Compatibilization-like effect of reactive organoclay on the poly(L-lactide)/poly(butylene succinate) blends [J].

Chen, GX ;

Kim, HS ;

Kim, ES ;

Yoon, JS .

POLYMER, 2005, 46 (25) :11829-11836

[7] Quenching of polymer inside aluminum DSC pans: Origin of an apparent artifact [J].

Chen, Huipeng ;

Cebe, Peggy .

THERMOCHIMICA ACTA, 2008, 476 (1-2) :63-65

[8] Non-isothermal crystallization of PET/PLA blends [J].

Chen, Huipeng ;

Pyda, Marek ;

Cebe, Peggy .

THERMOCHIMICA ACTA, 2009, 492 (1-2) :61-66

[9] Influence of crystal polymorphism on mechanical and barrier properties of poly(L-lactic acid) [J].

Cocca, Mariacristina ;

Di Lorenzo, Maria Laura ;

Malinconico, Mario ;

Frezza, Vincenzo .

EUROPEAN POLYMER JOURNAL, 2011, 47 (05) :1073-1080

[10] BISPHENOL-A POLYCARBONATE-POLY(BUTYLENE TEREPHTHALATE) TRANS-ESTERIFICATION .2. STRUCTURE-ANALYSIS OF THE REACTION-PRODUCTS BY IR AND H-1 AND C-13 NMR [J].

DEVAUX, J ;

GODARD, P ;

MERCIER, JP ;

TOUILLAUX, R ;

DEREPPE, JM .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1982, 20 (10) :1881-1894

← 1 2 3 4 5 6 7 →