Physical Chemistry of Polymers 2

 

Lecture:  Wed., 14:15 - 15:45, Seminar room 134
Seminar: Mon., 15:00 - 15:45, Seminar room 134

 

 

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 2020


Dear students,

...and suddenly, everything is different.  The pandemic of the SARS-CoV2 pathogen and its potentially severe disease COVID19 does not allow classical lecture courses to be held in the summer semester of 2020.  We very much regret that.  Thus far, the lecture Physical Chemistry of Polymers 2 has been characterized by a lively, interactive format in a small-group setting of a seminar room.  During normal semester operation, this would occur in the form of 12 lessons on 12 topics, one per week.  At the bottom of this page, you may find a timetable with dates showing when which of these teaching units would normally be on the schedule.  In the summer semester 2020, however, we all have to keep distance from each other.  The lecture will therefore be moved from the seminar room to your own apartment.  For this purpose, short scripts for each topic section of the lecture will be made available to you as working material in the "Scripts" section of this website.  In addition, audio-podcasts are made 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 privat 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, in normal times, there would be a seminar.  Transferring that into the virtual space is demanding, and so we will postpone it to a later stage, once small-group assemblies in a personal setting will be possible again.  You will receive further notice on that in due course.

Your teacher
Prof. Dr. Sebastian Seiffert

 

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 to Rheology (audio)

 

2. Viscoelasticity (audio)

 

3. Practice and Theory of Rheology (audio)

 

4. Superposition Principles (audio)

 

5. Mechanical Spectra (audio)

 

6. Rubber Elasticity (audio)

 

7. Reptation (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  15, 2020:    Introduction & Fundamentals of Rheology

April  22, 2020:   Viscoelasticity

April  29, 2020:    Practice and Theory of Rheology

May   06, 2020:    Superposition Principles

May   13, 2020:    Mechanical Spectra

May   20, 2020:    Rubber Elasticity

May   27, 2020:   Reptation

June 10, 2020:   Scattering Analysis of Polymers (Pt. 1)

June 17, 2020:   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 27, 2020

"Shear thickening in colloidal dispersions"
Norman J. Wagner and John F. Brady
Physics Today2009, 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 4, 2020

"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 11, 2020

"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 Matter2012, 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 18, 2020

"Overlap concentration of macromolecules in solution"
Q. Ying and B. Chu
Macromolecules1987, 20, 362–366.

"Influence of Cross-Linking on Probe Dynamics in Semidilute Polystyrene Systems"
Markus Susoff and Wilhelm Oppermann
Macromolecules2010,43, 9100–9107.

 

May 25, 2020

"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.

"Stimuli-Responsive Supramolecular Hydrogels with High Extensibility and Fast Self-Healing via Precoordinated Mussel-Inspired Chemistry"
Sen Hou and Peter X. Ma
Chem. Mater.2015, 27, 7627–7635.

 

June 8, 2020

"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 15, 2020

"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
Science2011, 334, 965–968.

 

June 22, 2020:

Method Review: Static and Dynamic Light Scattering

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


June 29, 2020

Method Review: Fluorescence Correlation Spectroscopy

Method Review: Forced Rayleigh Scattering