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., Seminar Room SR 107



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



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.



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 Winter Term 2022/23


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 above and below on this website.

Your teacher,
Prof. Dr. Sebastian Seiffert



Audio- and Videostreams


1. Introduction

Video: click here


2. Ideal Chains

Video: click here


3. Entropy Elasticity

Video: click here


4. Real Chains

Video: click here


5. Flory Theory

Video: click here


6. Chain Dynamics

Vide: click here


7. Flory–Huggins Theory

Video: click here


8. Phase Diagrams 

Video: click here


9. Osmotic Pressure 

Video: click here


10. Schlusswort

Video: click here





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


Oct.    26, 2022:    Preface

Nov.    02, 2022:    Introduction

Nov.    09, 2022:    Ideal Chains

Nov.    16, 2022:    Entropy Elasticity

Nov.    23, 2022:    Real Chains

Nov.    30, 2022:   Flory Exponent

Dec.   07, 2022:   Chain Dynamics

Jan.    11, 2023:   Flory–Huggins Theory

Jan.    18, 2023:   Phase Diagrams

Jan.    25, 2023:   Osmotic Pressure


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


Dates and Excercise Topics


Nov.    15, 2022:     Ideal Chains

Nov.    29, 2022:    Entropy Elasticity

Dec.   13, 2022:    Excluded Volume

Jan.    10, 2023:    Flory Theory

Jan.    24, 2023:    Polymer Thermodynamics


Results of the Exam written on August 26, 2022

PC Part

Klausureinsicht am 01.09. oder 02.09. zwischen 09:00 und 11:00 im Innenhof Chemie vor Eingang PMC-Bib, Terminabstimmung per mail.

Bei Interesse bitte eine email an Dr. Wolfgang Schärtl.


points total percent marks code
48,0 96,0 1,0 08
48.0 96,0 1,0 02
47,5 95,0 1,0 05
47,0 94,0 1,3 06
46,0 92,0 1,3 04
44,5 89.0 1,7 15
42,5 85,0 1,7 13
41,0 82,0 2,0 10
39,0 78,0 2,3 01
37,5 75,0 2,3 18
36,0 72,0 2,7 11
36,0 72,0 2,7 07
35,5 71,0 2,7 09
33,0 66,0 3,0 17
32,0 64,0 3,3 16
32,0 64,0 3,3 14
29,0 58,0 3,7 12
21,0 42,0 5,0 03


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