Physical Chemistry of Polymers 1

 

Lecture: Wednesdays, 12:00 (noon) till 1:00 p.m. (60 Min.), Lecture Hall C03
Exercise: Tuesdays, 1 p.m. till 2 p.m., Lecture Hall C03

 

 

Scripts - Physical Chemistry of Polymers 1 (login with your JGU account)

 

Goal


This lecture aims at establishing a basis of knowledge and competence for understanding fundamental structure–property relations of polymers, such to arc further teaching contents in the fields of polymer chemistry and materials engineering.

 

Requirements


Basic knowledge in organic and physical chemistry as well as mathematics, as taught in bachelor-level classes of these fields.

 

 

09.032.641 Lecture: Introduction to Macromolecular Chemistry: Physical Chemistry of Polymers

 

Preface to the Summer Term 2022

 

Dear students:

This is one of several online presences for the hybrid lecture "Physical Chemistry of Polymers 1" at JGU Mainz. Another online presence can be found on our e-learning platform Moodle; it will automatically show up there under your content if you are registered for this class.

What does "hybrid lecture" mean? It means that the lecture takes place in equal parts in digital and in real space. In the digital part, you can acquire the basic knowledge all by yourself. For this purpose, short scripts, each covering one of a total of nine lesson units of this lecture (that would normally be featured in a classical 90-min lecture-hall format each), are available to you as working materials in the "Scripts" section of this website and (alternatively), on our university`s e-learning platform Moodle. In addition, nine accompanying digital lectures, in the format of both a video and an audio-podcast each, are available to you for streaming on this website and on Moodle. You can view/listen them at home, supported by the scripts, and thus consume the lecture contents conveniently from your private place. As further accompanying material, the textbook "Physical Chemistry of Polymers" (S. Seiffert, DeGruyter 2020) is recommended, which presents the content in even greater depth and detail. You can lend it from our MIN Bereichsbibliothek (that's the library underneath the chemistry lab-classrooms); they have a decent number of both paper copies and e-Book licenses.

With these materials, you will be able to work through the lecture material completely by yourself; and you should also be able to pass the exam. If you like, however, you are also cordially invited to attend a classroom session, which takes place on Wednesdays from 12:00 to 13:00 in lecture hall C03. On these dates, we will work together in lively and interactive groups to deepen and anchor the understanding of the lecture material. We will meet once a week and work through one by one of the lecture topic-units, respectively. Participation in this presence format is voluntary, and the exam can be well passed without. It is to be expected, though, that true understanding of the lecture content can profit a lot from participation in this presence part of the class.

Accompanying to the lecture, there is an exercise. It takes place in presence. Dates are announced below on this website.

Your teacher,
Prof. Dr. Sebastian Seiffert

 

 

Audio- and Videostreams

 

1. Introduction

Video: click here

Audio:


2. Ideal Chains

Video: click here

Audio:


3. Entropy Elasticity

Video: click here

Audio:


4. Real Chains

Video: click here

Audio:


5. Flory Theory

Video: click here

Audio:


6. Chain Dynamics

Vide: click here

Audio:


7. Flory–Huggins Theory

Video: click here

Audio:


8. Phase Diagrams 

Video: click here

Audio:


9. Osmotic Pressure 

Video: click here

Audio:


10. Schlusswort

Video: click here

Audio:

 

 

 

Topics and Contents


1. Introduction

Delimination of the Field of Macromolecular Chemistry, History of the Discipline, Definition of the Teaching and Learning Targets of this Lecture

2. Ideal Chains
Chain Conformation, End-to-End Distance, Radius of Gyration, Characteristic Ratio, Kuhn Model, Persistence, Random Walk Statistics, Gaussian Coils, Free Energy of Ideal Chains, Entropy Elasticity, Fractality of Polymers

3. Real Chains
Interaction Potentials, Mayer f-Function, Excluded Volume, Types of Solvents, Theta State, Conformation of Real Chains, Flory Theory, Blob Model, Rouse and Zimm Dynamics

4. Thermodynamics of Polymer Systems
Lattice Model, Flory–Huggins Theory, Chi Parameter, Solubility Parameters, Phase Behavior of Polymer–Solvent and Polymer–Polymer Systems, Osmotic Pressure

 

Dates and Lessons

 

Apr.    20, 2022:    Preface

Apr.    27, 2022:    Introduction

May    04, 2022:    Ideal Chains

May   11, 2022:    Entropy Elasticity

May    18, 2022:    Real Chains

May    25, 2022:   Flory Exponent

Jun.   01, 2022:   Chain Dynamics

Jun.   08, 2022:   Flory–Huggins Theory

Jun.   15, 2022:   Phase Diagrams

Jun.   22, 2022:   Osmotic Pressure

 

09.032.650 Exercise: Introduction to Macromolecular Chemistry (Part 1 + 2)

 

Dates and Excercise Topics

 

May    10, 2022:     Ideal Chains

May    24, 2022:    Entropy Elasticity

Jun.   07, 2022:    Excluded Volume

Jun.   21, 2022:    Flory Theory

Jun.   05, 2022:    Polymer Thermodynamics

 

Results of the Exam written on February 18, 2022

PC Part

Klausureinsicht am 24.02. oder 25.02. im Innenhof Chemie vor Eingang PC, Terminabstimmung per mail.

Bitte erwägen Sie in Anbetracht des Infektionsschutzes nur dann eine Klausureinsicht, falls Ihnen dies unbedingt erforderlich erscheint!

Bei Interesse bitte eine email an Dr. Wolfgang Schärtl.

 

points total percent marks code
50 100 1,0 1
48 96 1,0 6
41 82 2,0 5
40 80 2,0 7
33 66 3,0 3
30 60 3,3 10
29 58 3,7 9
26 52 4,0 4
19 38 5,0 8
17 34 5,0 2

 

Note: these marks are an informal feedback only.

Marks are calculated according to:

100%95%: 1,0 ; 95%90%: 1,3

90%85%: 1,7 ; 85%80%: 2,0 ; 80%75%: 2,3

75%70%: 2,7 ; 70%65%: 3,0 ; 65%60%: 3,3

60%55%: 3,7 ; 55%50%: 4,0

< 50%: 5,0