Polylactide-based polyurethane and its shape-memory behavior

被引：191

作者：

Wang, Wenshou

Ping, Peng

Chen, Xuesi

Jing, Xiabin ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2006年 / 42卷 / 06期

基金：

中国国家自然科学基金;

关键词：

biopolymers; polyurethane; shape-memory;

D O I：

10.1016/j.eurpolymj.2005.11.029

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of polylactide polyurethanes (PLAUs) were synthesized from poly(L-lactide) diols, hexamethylene diisocyanate (HDI), and 1,4-butanediol (BDO). Their thermal and mechanical properties and shape-memory behavior were studied by infrared spectroscopy (IR), differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXID), tensile testing, and thermal mechanical analysis (TMA). The T(g)s of these polymers were in the range of 33-53 degrees C, and influenced by the Mn of the PLA diol and the ratio of the soft-segment to the hard-segment. These materials can restore their shapes almost completely after 150% elongation or twofold compression. By changing the M-n of the PLA diol and the ratio of the hard-to-soft-segment, their Ts and shape-recovery temperatures can be adjusted to the neighborhood of the body temperature. Therefore, these PLAUs are expected to find practical medical applications. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1240 / 1249

页数：10

共 35 条

[1] Amido-modified polylactide for potential tissue engineering applications [J].

Abayasinghe, NK ;

Perera, KPU ;

Thomas, C ;

Daly, A ;

Suresh, S ;

Burg, K ;

Harrison, GM ;

Smith, DW .

JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION, 2004, 15 (05) :595-606

[2]

Charlesby A., 1960, ATOMIC RAD POLYM

[3] Design of a Kalman filter for rotary shape memory alloy actuators [J].

Elahinia, MH ;

Ahmadian, M ;

Ashrafiuon, H .

SMART MATERIALS AND STRUCTURES, 2004, 13 (04) :691-697

[4] High-temperature shape memory alloys some recent developments [J].

Firstov, GS ;

Van Humbeeck, J ;

Koval, Y .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 378 (1-2) :2-10

[5] Internal stress storage in shape memory polymer nanocomposites [J].

Gall, K ;

Dunn, ML ;

Liu, YP ;

Stefanic, G ;

Balzar, D .

APPLIED PHYSICS LETTERS, 2004, 85 (02) :290-292

[6] Poly(vinyl ethers) as building blocks for new materials [J].

Goethals, EJ ;

Reyntjens, W ;

Lievens, S .

MACROMOLECULAR SYMPOSIA, 1998, 132 :57-64

[7] Crystallization and microstructure of poly(L-lactide-co-meso-lactide) copolymers [J].

Huang, J ;

Lisowski, MS ;

Runt, J ;

Hall, ES ;

Kean, RT ;

Buehler, N ;

Lin, JS .

MACROMOLECULES, 1998, 31 (08) :2593-2599

[8] The manufacturing techniques of various drug loaded biodegradable poly(lactide-co-glycolide) (PLGA) devices [J].

Jain, RA .

BIOMATERIALS, 2000, 21 (23) :2475-2490

[9] Shape memory polyurethane containing mesogenic moiety [J].

Jeong, HM ;

Lee, JB ;

Lee, SY ;

Kim, BK .

JOURNAL OF MATERIALS SCIENCE, 2000, 35 (02) :279-283

[10] Synthesis and properties of thermotropic liquid crystalline polyurethane elastomers [J].

Jeong, HM ;

Kim, BK ;

Choi, YJ .

POLYMER, 2000, 41 (05) :1849-1855

← 1 2 3 4 →