Physical Chemistry of Polymers 2

 

Lecture: online
Seminar: online

 

 

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 2021


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 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

Accompanying to the lecture, there is a seminar. This will also take place online. You will receive a note on how that will be organized at the start of the semester via message over JOGU-StINe.

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  14, 2021:    Introduction & Fundamentals of Rheology

April  21, 2021:    Viscoelasticity

April  28, 2021:    Practice and Theory of Rheology

May   05, 2021:    Superposition Principles

May   12, 2021:    Mechanical Spectra

May   19, 2021:    Rubber Elasticity

May   26, 2021:   Reptation

June 09, 2021:   Scattering Analysis of Polymers (Pt. 1)

June 16, 2021:   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


April 26, 2021

"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 3, 2021

"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 10, 2021

"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 17, 2021

"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 31, 2021

"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.

 

June 7, 2021

"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 14, 2021

"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 21, 2021:

Method Review: Static and Dynamic Light Scattering

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


June 28, 2021

Method Review: Fluorescence Correlation Spectroscopy

Method Review: Forced Rayleigh Scattering