Fall 2017 Seminar Series

PPSM sponsors a series of seminars covering a broad range of topics of general interest to the polymer community, featuring speakers from both on and off campus. [LIST OF PPSM SEMINARS 1986 to PRESENT] We invite the polymer community at MIT and elsewhere to participate. For further information, contact Professor Niels Holten-Andersen at holten@mit.edu. All talks take place on Wednesdays.

If you would like to receive Tuesday and Wednesday email announcements of the next upcoming PPSM seminar, please email your request including your email address to:
ppst-www@mit.edu

FALL 2017 SEMINAR LOCATION: 56-114

Seminar 3:30 PM / Refreshments 3:00 PM

NOTE: Updates to the calendar below will be made throughout Summer 2017 as information is received.

 ZhibinGuan2017.jpg

NEXT POLYMER SEMINAR:

Be Strong, Tough, Adaptive and Self-healing: 
Life Lessons Applied to Soft Material Designs

Prof. Zhibin Guan

Department of Chemistry
University of California/Irvine

Wednesday September 6th, 2017

ABSTRACT:

Many biopolymers not only have advanced mechanical properties such as high modulus, toughness, and elasticity, but more importantly, exhibit dynamic properties. Inspired by Nature, we have designed a series of biomimetic modular polymers with folded nano-domains as the repeat units. These new material manifest an exciting combination of key mechanical, as well as adaptive, properties that have until now proven difficult to achieve in man-made systems. Single molecule force was used to correlate the exceptional mechanical properties with their molecular structures. In another example of material design inspired by nature, we developed strong and spontaneous self-healing polymers. In contrast to previous designs, our system spontaneously self-heals as a single-component solid at ambient conditions without the need of any external stimulus, healing agent, plasticizer, or solvent.  In addition, we developed several other strategies for self-healing materials including the use of dynamic metal-ligand interactions and dynamic covalent bond exchange. In this seminar, I will discuss the design, synthesis, and single molecule and macroscopic property studies of several dynamic adaptive polymers, as well as strong and autonomic self-healing systems. 

References:

  1. “Modular Design in Natural and Biomimetic Soft Materials” Angew. Chem. Int. Ed. 2011, 50, 9026.
  2. “Multiphase Design of Stiff and Autonomic Self-Healing Polymers” Nature Chem. 2012, 4, 467.
  3. “Direct correlation of single-molecule properties with bulk mechanical performance for the biomimetic design of polymers” Nature Materials 2014, 13, 1055.
  4. “Self-Healing Multiphase Polymers via Dynamic Metal-Ligand Interactions” J. Am. Chem. Soc. 2014136, 16128.
  5. “Malleable and Self-Healing Covalent Polymer Networks through Tunable Dynamic Boronic Ester Bonds” J. Am. Chem. Soc. 2015, 137, 6492.

 

OCTOBER

 Byeongdu Lee

 18

“Small Angle X-ray Scattering Studies of
Colloidal Nanoparticles”

Dr. Byeongdu Lee
Argonne National Lab

 NathanGianneschi

25

Prof. Nathan C. Gianneschi
Department of Chemistry
Northwestern University
TOPIC: TBA

NOVEMBER

 WaisHosseini

8

Prof. Dr. Mir Wais Hosseini
Institute for Advanced Study
University of Strasbourg
TOPIC: TBA

YanXia

15

Prof. Yan Xia
Department of Chemistry
Stanford University
TOPIC: TBA

Please watch this space for additions to the series as information becomes available.

MIT-logo-gray-lightgray-54x28  Massachusetts Institute of Technology Cambridge, MA 02139-4307

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