Part 1. Introduction to Polymer Science

Part 1.Introduction to Polymer Science 4th editionL. H. Sperling ISBN 0-471-70606-X Midterm + Final 50 % Quizzes50 %

Introduction to Polymer Science • Chain Structure and Configuration • Dilute Solution • Concentrated Solution • The amorphous state • The crystalline state • Polymers in the liquid crystalline state • Glass-Rubber Transition Behavior • Cross-linked Polymers and Rubber Elasticty • Polymer Viscoelasticity and Rheology • Mechanical Behavior of Polymers • Polymer Surfaces and Interfaces • Muticomponent Polymeric Materials • Modern Polymer Topics

Part 2.Polymer Crystallography Crystallization Mechanism Diffraction (WAXS/SAXS)

Chapter 1. Introduction to Polymer Science

Polymer comes from life

From Caouchouc (“weeping tree”) to vulcanized rubber

Vulcanization of natural rubber Charles Goodyear (1800-1860)

Macromolecular Hypothesis HERMANN STAUDINGER (1881-1965) 1953 Nobel Laureate in Chemistry for his discoveries in the field of macromolecular chemistry. Background Residence: Germany

1.1 From little molecules to big molecules

Alkane/Polyethylene Monomer  oligomer  polymer

Molecular weight-melting temperature relationship for the alkane series Tm of PE

Comparison of wax and polyethylene structure and morphology

Entanglement of polymer chains Low molecular weight No entanglement High molecular weight Chains are entangled

1.2 Molecular weight and molecular weight distributions 1.2.1 Effect on tensile strength sbis tenile stress to break Mn is the number-average molecular weight A and B are constants

1.2.2 Molecular weight average Number average molecular weight Weight average molecular weight Mw/Mn: polydispersity index

1.3 Major polymer transition • Glassy • glassy transition • rubbery plateau • Rubbery flow • Viscous flow

1.4 Polymer synthesis and structure 1.4.1 Chain polymerization 1.4.1.1 Free Radical polymerization Initiation Propagation termination 1.4.1.2 initiation

1.4.1.3 propagation 1.4.1.4 termination

1.4.2 Step polymerization 1.4.2.1 A polyester condensation reaction

Nylon 4 Nylon 48

1.4.2.2 Stepwise nomenclature and structures

1.5 Cross-linking, plasticizers, and fillers The cross-linking of rubber with sulfur is called “vulcanization”

1.7 Historical development of industrial polymers

PB PE PP PI PS PAN

PVAC PVA PVC

Teflon PMMA

PPO POM Nylon66 PEO Nylon6 PET

Part 1. Introduction to Polymer Science

Part 1. Introduction to Polymer Science

Presentation Transcript

Introduction to UML (Part 1)

Introduction to Algebra Part 1

Introduction to Sensors - Part 1

Introduction to ML – Part 1

Introduction to chemistry Part 1

Introduction to physical polymer science

Introduction to Optimization (Part 1)

Part 1 Introduction to optiSLang

Introduction to Robotics Part 1

Introduction to OpenGL (part 1)

Part 1: Introduction to OOAD

Part 1: Introduction to XProc

PART 1: INTRODUCTION TO BLOG

Introduction to Trigonometry Part 1

Introduction to Accelerators Part 1

Introduction to CBMC: Part 1

Introduction to OSHA (Part 1)

Introduction to CBMC: Part 1

Introduction to Polymer Engineering