Physical Chemistry of Polymers 1

 

Lecture:   Wed., 12:15 - 13:45, HS C03
Exercise: Tue., 13:00 - 13:45, Seminar room 107

 

 

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 Winter Term 2020/21

 

Dear students:

Still, the pandemic of the SARS-CoV2 pathogen does not allow classical lecture courses to be held in this semester.  To keep protective distance, the lecture is therefore moved from the lecture hall to your own apartment.  For this purpose, short scripts, each covering one of a total of nine lesson units of this lecture, are available to you as working materials in the "Scripts" section of this website.  In addition, nine accompanying audio-podcasts are available to you for streaming on this website.  You can listen to 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.

Accompanying to the lecture, there is an exercise in digital format.  You can download exercise sheets in the "Scripts" section of this website and solve them at home.  Please make your solutions by hand, scan them or take a photo of them, and send this to Ms. M.Sc. Martha Koziol (mkozio01[a]uni-mainz.de).  You will then receive personal feedback from her.  Participation in this exercise is voluntary and has no consequences for the completion of the module; however, active participation is strongly recommended, as it turned out in the past that this leads to significantly more efficient learning for the exam in the end…and that the exam is then typically also passed with significantly better results.

Your teachers,
Prof. Dr. Sebastian Seiffert
M.Sc. Martha Koziol

 

Audiostreams

 

For listening, you may either use the simple player implemented on this website, or alternatively, a better and more versatile player that you can access by simply clicking on the titles of the audios.  (Another remark: for a trouble-free hearing please don`t use Firefox as your browser.)

 

1. Introduction (audio)


2. Ideal Chains
(audio)


3. Entropy Elasticity
(audio)


4. Real Chains
(audio)


5. Flory Theory
(audio)


6. Chain Dynamics
(audio)


7. Flory–Huggins Theory
(audio)


8. Phase Diagrams
(audio)


9. Osmotic Pressure
(audio)


10. Schlusswort
(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

 

Nov.   04, 2020:    Introduction

Nov.   11, 2020:    Ideal Chains

Nov.   18, 2020:    Entropy Elasticity

Nov.   25, 2020:    Real Chains

Dec.   03, 2020:   Flory Exponent

Dec.   10, 2020:   Chain Dynamics

Jan.    06, 2021:   Flory–Huggins Theory

Jan.    13, 2021:   Phase Diagrams

Jan.    20, 2021:   Osmotic Pressure

 

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

 

Dates and Excercise Topics

 

Nov.  17, 2020:     Ideal Chains

Dec.  01, 2020:    Entropy Elasticity

Dec.  15, 2020:    Excluded Volume

Jan.   12, 2021:    Flory Theory

Jan.   26, 2021:    Polymer Thermodynamics

 

Results of the Exam written on August 28, 2020

 

If you want to check your exam PC part, contact W.Schärtl via email for an appointment between 14.09.2020 and 02.10.2020


PC Part

 

 

Points total Percent Mark Exam ID No.
39,0 78 1,7 01
39,0 78 1,7 02
19,5 39 5,0 03
28,0 56 3,7 04
37,5 75 2,0 05
12,5 25 5,0 06
9,0 18 5,0 07
25,5 51 4,0 08
43,5 87 1,0 09
32,0 64 3,0 10
29,0 58 3,3 11
41,5 83 1,3 12
33,0 66 2,7 13
26,0 52 4,0 14
27,5 55 3,7 15
14,0 28 5,0 16
44,5 89 1,0 17
29,0 58 3,3 18
38,5 77 2,0 19
34,0 68 2,7 20
25,5 51 4,0 22

 

Note: these marks are an informal feedback only.

Marks are calculated according to:

100%86%: 1,0 ; 86%82%: 1,3

82%78%: 1,7 ; 78%74%: 2,0 ; 74%70%: 2,3

70%66%: 2,7 ; 66%62%: 3,0 ; 62%58%: 3,3

58%54%: 3,7 ; 54%50%: 4,0

< 50%: 5,0