An Introduction to Polymer Physics -...
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1 An Introduction to An Introduction to Polymer Physics Polymer Physics Wentao Hao Wentao Hao College of Chemical Engineering College of Chemical Engineering Hefei University of Technology Hefei University of Technology 2 Wentao Hao, Hefei University of Technology Why & What Why & What Why do you choose this course? Why do you choose this course? What do you know about polymer (physics)? What do you know about polymer (physics)? 3 Wentao Hao, Hefei University of Technology Physics Physics Physics ( Physics ( Greek Greek : : physis physis – meaning " meaning "nature nature ") ") is a is a natural science natural science ; it is the study of ; it is the study of matter matter and its and its motion motion through through spacetime spacetime and all and all that derives from these, such as that derives from these, such as energy energy and and force force . More broadly, it is the general . More broadly, it is the general analysis of analysis of nature nature , conducted in order to , conducted in order to understand how the understand how the world world and and universe universe behave. behave. From Wikipedia, the free encyclopedia 4 Wentao Hao, Hefei University of Technology Polymer physics Polymer physics Polymer physics is the field of Polymer physics is the field of physics physics associated to the study of associated to the study of polymers polymers , their , their fluctuations, fluctuations, mechanical properties mechanical properties , as well , as well as the as the kinetics of reactions kinetics of reactions involving involving degradation and degradation and polymerisation polymerisation of of polymers polymers and and monomers monomers respectively. respectively. From Wikipedia, the free encyclopedia 5 Wentao Hao, Hefei University of Technology Polymer physics Polymer physics However, it is not a clear description. However, it is not a clear description. In my opinion, polymer physics can also be In my opinion, polymer physics can also be defined as defined as the relationship between the the relationship between the structure and properties of polymer structure and properties of polymer . 6 Wentao Hao, Hefei University of Technology 1. 1. Introduction to the course Introduction to the course 1.1 Polymer and scope of the book 1.1 Polymer and scope of the book 1.2 The chemical nature of polymers 1.2 The chemical nature of polymers 1.3 Some useful physical techniques 1.3 Some useful physical techniques
Transcript of An Introduction to Polymer Physics -...
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An Introduction to An Introduction to Polymer PhysicsPolymer Physics
Wentao HaoWentao HaoCollege of Chemical EngineeringCollege of Chemical EngineeringHefei University of TechnologyHefei University of Technology
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Why & WhatWhy & What
Why do you choose this course?Why do you choose this course?What do you know about polymer (physics)?What do you know about polymer (physics)?
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PhysicsPhysics
Physics (Physics (GreekGreek: : physisphysis –– meaning "meaning "naturenature") ") is a is a natural sciencenatural science; it is the study of ; it is the study of mattermatterand its and its motionmotion through through spacetimespacetime and all and all that derives from these, such as that derives from these, such as energyenergy and and forceforce. More broadly, it is the general . More broadly, it is the general analysis of analysis of naturenature, conducted in order to , conducted in order to understand how the understand how the worldworld and and universeuniversebehave.behave.
From Wikipedia, the free encyclopedia
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Polymer physics Polymer physics
Polymer physics is the field of Polymer physics is the field of physicsphysicsassociated to the study of associated to the study of polymerspolymers, their , their fluctuations, fluctuations, mechanical propertiesmechanical properties, as well , as well as the as the kinetics of reactionskinetics of reactions involving involving degradation and degradation and polymerisationpolymerisation of of polymerspolymersand and monomersmonomers respectively. respectively.
From Wikipedia, the free encyclopedia
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Polymer physicsPolymer physics
However, it is not a clear description.However, it is not a clear description.In my opinion, polymer physics can also be In my opinion, polymer physics can also be defined as defined as the relationship between thethe relationship between thestructure and properties of polymerstructure and properties of polymer..
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1.1. Introduction to the courseIntroduction to the course
1.1 Polymer and scope of the book1.1 Polymer and scope of the book
1.2 The chemical nature of polymers1.2 The chemical nature of polymers
1.3 Some useful physical techniques1.3 Some useful physical techniques
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1.1 polymer and scope of the 1.1 polymer and scope of the bookbook
What is polymer?What is polymer?MacromoleculeMacromoleculeLong chainLong chainChemical bondsChemical bondsRotation Rotation FlexibilityFlexibilityCondensed state structureCondensed state structureMolecular motionMolecular motionMechanical performanceMechanical performance…………
diversity
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rotation
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What’s this?
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Linked units are more and more……
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flexibility
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motion
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motion
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Chemists in Japan have created light-driven polymer films that can walk like inchworms and move like robotic arms.
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Condensed state
structure
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Condensed state
structure
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The weapon is fed from translucent, double-column box magazines (molded from a high-strength polymer) with a 30-round capacity and an empty weight of 130 g (4.59 oz). The light machine gun version of the AUG uses an extended 42-round magazine.
Mechanical Mechanical performanceperformance 20
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Super aborsobantpolymer
EAT, SLEEP, DO –POLYMER
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How to understand
the diversity of polymers?
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1.2 1.2 classification of polymersclassification of polymers
linearlinear
A. Classification based on structureA. Classification based on structure
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BranchedBranched
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BranchedBranched
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crosslinked
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crosslinked
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crosslinkedcrosslinked
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ThermoplasticsThermoplastics
B. Classification based on properties
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So, what is the main feature of thermoplastics?
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1950's Thermoset flower necklace with rhinestone
centers
high performance thermoset composites
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Rubbers
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Rubber band gun
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amorphous crystalline crosslinked
thermoplastics Thermosets or Rubbers
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Needle-free syringe molded of Vectra® liquid crystal polymer
LCP
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1.3 Some useful physical techniques1.3 Some useful physical techniques
Differential Scanning Differential Scanning CalorimetryCalorimetry (DSC)(DSC)
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XX--ray scatteringray scattering
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Carbon dioxide also displays, 2 stretching and 1 bend vibration.
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SEM & TEMSEM & TEM
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STMSTM
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AFMAFM
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Time to Time to Ask Ask
QuestionsQuestions
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HOMEWORKHOMEWORK
Why shall we learn the polymer structure?Why shall we learn the polymer structure?What are the four levels of polymer structure?What are the four levels of polymer structure?What is the short range structure? What is the short range structure? What is What is ““configurationconfiguration”” of polymer?of polymer?Read some relative books or literatures and find Read some relative books or literatures and find the answer.the answer.
