文档介绍：材料科学导论
AN INTRODUCTION TO MATERIALS SCIENCE
2012－2013，第一学期
第十二讲：高分子材料的结构与性能
(The structure and properties of polymers)
Nov. 27, Tuesday Lecturer：Ke-Qin Zhang(张克勤)
Room302-2408 Office：908-2431 Email：******@
高分子材料(Polymeric materials)
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主要内容(Outline)
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Polymer structures
Hydrocarbon and polymer molecules
Chemistry of polymer molecules
Molecular weight and shape
Molecular structure and configurations
Thermoplastic and thermosetting polymers
Copolymers
Polymer crystals and degree of crystallinity
Defects and diffusion in polymers
Characteristics, Applications, and Processing of Polymers
Mechanical Behavior of Polymers
Mechanisms of Deformation and for Strengthening of Polymers Cryst
allization, Melting, and Glass Transition Phenomena in Polymers
Polymer Synthesis and Processing
简介(Introduction on polymers)
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Polymers – materials consisting of polymer
molecules that consist of repeated chemical units
(`mers') joined together, like beads on a string.
Some polymer molecules contain hundreds or
thousands of monomers and are often called
macromolecules.
Polymers may be natural, such as leather, rubber,
cellulose or DNA, or synthetic, such as nylon or
polyethylene (聚乙烯).
简介(Introduction on polymers)
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Many of important current research problems and technological
applications involve polymers. Living organisms are mainly composed of
polymerized amino acids (proteins) nucleic acids (RNA and DNA), and other
biopolymers. The most powerful computers - our brains - are mostly just a
complex polymer material soaking in salty water. We are just making first
small steps towards understanding of biological systems.
Silk fiber is produced by