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SUMMARY:Tuning Polymer Microstructures with a Single Metallocene Catalyst f
 or Access to Novel Materials
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20181001T000000
UID:2026-04-24-16-17-45@natsci.colostate.edu
DTSTAMP:20260424T161745
Description:Literature Seminar Abstract\n\nRoughly 350 million tons of plas
 tic enters the global economy each year. Trends point to increases of 100 
 million tons more each decade. To make matters more dire\, most commercial
  materials are composed of more than one polymer\, adding the complexity o
 f separation of one polymer from another. As recycling these materials is 
 costly and time consuming\, society turns to landfills and incineration. O
 ne proposed solution is to employ thermoplastic elastomeric homopolymers w
 ith tunable thermal and mechanical properties and innate recyclability. In
  1995\, The Waymouth group investigated the synthesis of stereoblock therm
 oplastic elastomeric polypropylene by employing a catalyst with oscillatin
 g stereocontrol. In order to address the lack of control in homopolymer st
 ereoblock growth\, a rational catalyst design was combined with manipulate
 d reaction conditions. The mechanism of an oscillating metallocene as a st
 rategy to tune the stereoblock content in a homopolymer\, along with the i
 mpact this landmark study has had on the field of polymer catalysis into 2
 018\, will be discussed.\n\n1. Coates\, G. W.\; Waymouth\, R. \" Oscillati
 ng Stereocontrol: A strategy for the Synthesis of Thermoplastic Elastomeri
 c Polypropylene\" Science\, 1995\, 267\, 217-219. 4:00 pm
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