Physical Chemistry of Polymers 2






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
Topics and Contents

1. Rheology and Mechanics of Polymer Systems
Hooke’s Law, Newton’s Law, Viscoelasticity, Relaxation and Creep, Newtonian vs. Non-Newtonian Flow, Energy vs. Entropy Elasticity, Reptation in Polymer Melts, Rubber Elasticity, Boltzmann Superposition Principle, Time–Temperature Superposition
 
2. Polymer Solutions
The Process of Dissolving Solid Polymers, Concentration Regimes, Dilute Solutions, Semi-Dilute Solutions, Screening, Scaling Laws, Entangled and Unentangled Dynamics, Reptation vs. Hydrodynamic Scaling, Concentrated Solutions
 
3. Polymer Networks and Gels
Classification of Gels, Gelation, Percolation, Gel Point, Mean-Field and Scaling Theory, Swelling
 
4. Glassy and Crystalline Polymers
Glass Transition, Free Volume, WLF Equation, Molecular Structure and Glass Transition Temperature, Polymer Crystallization, Micelles, Single Crystals, Spherulites, Semi-Crystalline Structures, Gibbs–Thomson Equation

5. Scattering Analysis of Polymer Systems
Light, Neutron, and X-Ray Scattering, Scattering Function and Structure Factor, Scattering from Dilute Solutions of Ideal and Real Chains, Scattering from Semi-Dilute Solutions, Scattering from Networks and Gels

6. Fluorescence-Based Characterization of Polymer Dynamics
Diffusion Equations, Fluorescence Recovery After Photobleaching, Fluorescence Correlation Spectroscopy


Dates and Lessons

April 19, 2017:     Introduction & Fundamentals of Rheology

April 26, 2017:     Principles of Viscoelasticity

May 03, 2017:     Time–Temperature Superposition

May 10, 2017:     Rubber Elasticity

May 17, 2017:     Terminal Flow and Reptation

May 24, 2017:     Polymer Solutions (Pt. 1)

May 31, 2017:     Polymer Solutions (Pt. 2)

June 07, 2017:     Polymer Networks and Gels (Pt. 1)

June 14, 2017:     Polymer Networks and Gels (Pt. 2)

June 21, 2017:     Polymer Glasses and Crystals

June 28, 2017:     Scattering Techniques in Polymer Science

July 05,  2017:     Polymer Dynamics Probed by FRAP and FCS

July 12,  2017:     Questions and Answers


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, 2017:

"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 4, 2017:

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

Presenter: C. Hahn

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


May 11, 2017:

"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.

Presenter: K. Kaygisiz

"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, 2017:

"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.


June 1, 2017:

"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.

Presenter: W. Kitzmann

"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.

Presenter: P. Roth


June 8, 2017:

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

Presenter: N. Fribiczer

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

Presenter: I. Krüger


June 22, 2017:

"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 29, 2017:

Method Review:  Static and Dynamic Light Scattering

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


July 6, 2017:

Method Review:  Fluorescence Correlation Spectroscopy

Method Review:  Forced Rayleigh Scattering