Moisture Effects on Antheraea pernyi Silk's Mechanical Property

被引：85

作者：

Fu, Chengjie ^{[1
]}

Porter, David ^{[2
]}

Shao, Zhengzhong ^{[1
]}

机构：

[1] Fudan Univ, Dept Macromol Sci, Adv Mat Lab, Key Lab Mol Engn Polymers,Minist Educ, Shanghai 200433, Peoples R China

[2] Univ Oxford, Dept Zool, Oxford OX1 3PS, England

来源：

MACROMOLECULES | 2009年 / 42卷 / 20期

基金：

欧洲研究理事会; 中国国家自然科学基金;

关键词：

SPIDER DRAGLINE SILK; THERMAL-PROPERTIES; GLASS-TRANSITION; FIBROIN FILMS; WATER; BEHAVIOR; SUPERCONTRACTION; TEMPERATURE; ABSORPTION;

D O I：

10.1021/ma901321k

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Water plays all essential role in determining the mechanical properties of silks and other structural proteins. Here we study the effects of moisture oil the elastic modulus of Antheraea pernyi silks, which exhibit all abrupt drop over a narrow range of relative humidity in the same way as synthetic polymers do in it temperature scan through their glass transition. A linear relationship between relative humidity and the transition temperature allows a simple transformation of the modulus-humidity curves into a general modulus-temperature relation for Antheraea pernyi silks. A model is presented to explain these observations quantitatively at the molecular level.

引用

页码：7877 / 7880

页数：4

共 26 条

[1]

Agarwal N, 1997, J APPL POLYM SCI, V63, P401

[2] INTERACTION OF EPOXY-RESINS WITH WATER - THE DEPRESSION OF GLASS-TRANSITION TEMPERATURE [J].

ELLIS, TS ;

KARASZ, FE .

POLYMER, 1984, 25 (05) :664-669

[3] WISE NMR characterization of nanoscale heterogeneity and mobility in supercontracted Nephila clavipes spider dragline silk [J].

Holland, GP ;

Lewis, RV ;

Yarger, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (18) :5867-5872

[4] Effect of water on the thermal properties of silk fibroin [J].

Hu, Xiao ;

Kaplan, David ;

Cebe, Peggy .

THERMOCHIMICA ACTA, 2007, 461 (1-2) :137-144

[5] Effect of water absorption on the plastic deformation behavior of nylon 6 [J].

Miri, V. ;

Persyn, O. ;

Lefebvre, J. -M. ;

Seguela, R. .

EUROPEAN POLYMER JOURNAL, 2009, 45 (03) :757-762

[6]

Park Y, 1997, J POLYM SCI POL PHYS, V35, P807, DOI 10.1002/(SICI)1099-0488(19970415)35:5<807::AID-POLB9>3.0.CO

[7]

2-I

[8]

Parkhe AD, 1997, J MOL RECOGNIT, V10, P1, DOI 10.1002/(SICI)1099-1352(199701/02)10:1<1::AID-JMR338>3.0.CO

[9]

2-7

[10] Mechanical properties of silkworm silk in liquid media [J].

Pérez-Rigueiro, J ;

Viney, C ;

Llorca, J ;

Elices, M .

POLYMER, 2000, 41 (23) :8433-8439

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