Physical Chemistry of Polymers 2

 

Lecture: Wednesdays, 14:15 till 15:45, SR 107
Seminar: TBA

 

 

Scripts - Physical Chemistry of Polymers 2 (login with your JGU account)

 

Goal


This lecture aims at establishing a conceptual knowledge on the structure, dynamics, and function of multi-component polymer systems, along with adding a methodological knowledge on their experimental characterization.

 

Requirements


Successful participation in the basic lecture Physical Chemistry of Polymers 1

 

 

09.032.2080 Lecture: Introduction to Macromolecular Chemistry: Physical Chemistry of Polymers 2

 

Preface to the Summer Term 2022

 

Dear students:

This is one of several online presences for the hybrid lecture "Physical Chemistry of Polymers 2" 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 14:15 to 15:45; a place for that will be announced via JOGUStINe once it has been assigned. On these dates, we will work together in a lively and interactive format 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 a seminar. We will discuss how, when, and where will will have it in our first lesson unit.

Your teacher,
Prof. Dr. Sebastian Seiffert

 

 

Audio- and Videostreams

 

1. Introduction to Rheology

Video: click here

Audio:

 

2. Viscoelasticity

Video: click here

Audio:

 

3. Practice and Theory of Rheology

Video: click here

Audio:

 

4. Superposition Principles

Video: click here

Audio:

 

5. Mechanical Spectra

Video: click here

Audio:

 

6. Rubber Elasticity

Video: click here

Audio:

 

7. Reptation

Video: click here

Audio:

 

8. Scattering Methods in Polymer Science

Video: click here

Audio:

 

9. Light Scattering on Polymers

Video: click here

Audio:

 

10. Schlusswort

Video: click here

Audio:

 

 

 

Topics and Contents

 

5. Rheology and Mechanics of Polymer Systems
Hooke’s Law, Newton’s Law, Viscoelasticity, Relaxation and Creep, Newtonian vs. Non-Newtonian Flow,  Macro- and Microrheology, Mechanical Models, Boltzmann Superposition Principle, Time–Temperature Superposition, Energy vs. Entropy Elasticity, Rubber Elasticity, Reptation in Polymer Melts

6. Scattering Analysis of Polymer Systems
Basics of Scattering, Bragg Diffraction, Scattering Vector, Scattering Regimes, Structure and Form Factor, Rayleigh Ratio, Static Light Scattering, Dynamic Light Scattering, Zimm Plot, Autocorrelation Function

 

 

Dates and Lessons


April  20, 2022:    Introduction & Fundamentals of Rheology

April  27, 2022:    Viscoelasticity

May   04, 2022:    Practice and Theory of Rheology

May   11, 2022:    Superposition Principles

May   18, 2022:    Mechanical Spectra

May   25, 2022:    Rubber Elasticity

June  01, 2022:   Reptation

June 08, 2022:   Scattering Analysis of Polymers (Pt. 1)

June 15, 2022:   Scattering Analysis of Polymers (Pt. 2)

 

09.032.2082 Seminar to Polymer Chemistry II (PC Part)

 

This lecture, as well as its organic-chemistry counterpart, will be accompanied by a literature seminar. Students are required to present a paper in this seminar in the form of a talk. Dates and topics (=papers) will be discusssed and assigned at the start of this class.1


May 02, 2022

"Shear thickening in colloidal dispersions"
Norman J. Wagner and John F. Brady
Physics Today 2009, October Issue, 27–32.

"Is the Universal Law [=The Flory–Fox Viscosity Law] Valid for Branched Polymers?"
Albena Lederer, Walther Burchard, Anna Khalyavina, Peter Lindner, and Ralf Schweins
Angew. Chem. Int. Ed. 2013, 52, 4659–4663.

 

May 9, 2022

"Microrheology"
M.L. Gardel, M.T. Valentine, and D.A. Weitz
in: Kenneth S. Breuer (Ed.), Microscale Diagnostic Techniques, Springer (2005).

"Fourier-Transform Rheology"
Manfred Wilhelm
Macromol. Mater. Eng. 2002, 287, 83–105.

 

May 16, 2022

"Helix versus coil polypeptide macromers: gel networks with decoupled stiffness and permeability"
Abigail M. Oelker, Shannon M. Morey, Linda G. Griffith, and Paula T. Hammond
Soft Matter 2012, 8, 10887–10895.

"Colloidal Analogues of Charged and Uncharged Polymer Chains with Tunable Stiffness"
Hanumantha Rao Vutukuri, Ahmet Faik Demirçrs, Bo Peng, Peter D. J. van Oostrum, Arnout Imhof, and Alfons van Blaaderen
Angew. Chem. Int. Ed. 2012, 51, 11249–11253.

 

May 23, 2022

"Overlap concentration of macromolecules in solution"
Q. Ying and B. Chu
Macromolecules 1987, 20, 362–366.

"Influence of Cross-Linking on Probe Dynamics in Semidilute Polystyrene Systems"
Markus Susoff and Wilhelm Oppermann
Macromolecules 2010,43, 9100–9107.

 

May 30, 2022

"Small-Molecule Dynamics and Mechanisms Underlying the Macroscopic Mechanical Properties of Coordinatively Cross-Linked Polymer Networks"
Wayne C. Yount, David M. Loveless, and Stephen L. Craig
J. Am. Chem. Soc. 2005,127, 14488–14496.

"Negative Energy Elasticity in a Rubberlike Gel."
Yuki Yoshikawa, Naoyuki Sakumichi, Ung-il Chung, and Takamasa Sakai
Phys. Rev. X 2021, 11, 011045.

 

June13, 2022

"Phase Transitions of Gels"
Yong Li and Toyaoichi Tanaka
Annu. Rev. Mater. Sci. 1992, 22, 243–277.

"Self-Oscillating Polymer and Gels as Novel Biomimetic Materials"
Ryo Yoshida
Bull. Chem. Soc. Jpn. 2008, 81, 676–688.

 

June 20, 2022

"Size-Dependent Depression of the Glass Transition Temperature in Polymer Films"
Joe L. Keddie, Richard A. L. Jones, and Rachel A. Cory,
Europhys Lett. 1994, 27, 59.

["Vitrimers"] "Silica-Like Malleable Materials from Permanent Organic Networks"
Damien Montarnal, Mathieu Capelot, François Tournilhac, and Ludwik Leibler
Science 2011, 334, 965–968.

 

June 27, 2022:

Method Review: Static and Dynamic Light Scattering

Method Review: Small-Angle X-Ray and Neutron Scattering


July 04, 2022:

Method Review: Fluorescence Correlation Spectroscopy

Method Review: Forced Rayleigh Scattering