ADVANCED MATERIALS BASED ON DENDRITIC ARCHITECTURES FOR NEXT GENERATION MICROELECTRONIC APPLICATIONS
Description:
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THE GOLDEN GATE POLYMER FORUM
Monthly Dinner Meeting
October 23, 2000
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"ADVANCED MATERIALS BASED ON DENDRITIC ARCHITECTURES
FOR NEXT GENERATION MICROELECTRONIC APPLICATIONS"
James L. Hedrick
Center for Polymer Interfaces and Macromolecular Assemblies,
IBM Almaden Research Center, San Jose
hedrick@almaden.ibm.com
ABSTRACT
The macromolecular engineering of complex molecular
architectures through the introduction of controlled
branching or block copolymerization has continued to
assume an increasingly important theme in polymer science.
We have used a combination of different polymerization
techniques to prepare branched polymers with narrow
polydispersities and controlled molecular weights and
end-groups. Further elaboration has been demonstrated
through the use of libraries of new multifunctional
orthogonal initiators and functional dendrons together
with controlled polymerization processes. For example,
dendrimer-like star polymers are a new class of
macromolecules that allow the preparation of radial
block copolymers as well as the preparation of
topological isomers(1,2). The prepared isomers permitted
a unique opportunity to study physical and chemical
properties as a function of the molecular structure
for polymers with molecular weights of around 70,000
g/mol. Moreover, by varying the size of the dendrimer-
like star polymers they have been used to understand
differences and similarities between dendrimers and
star polymers. In the case of the dendrimer-like star
block copolymers the molecular architecture was shown
to have a pronounced affect of the morphology and
interfacial activity. These new polymers have been used
as macromolecular templates for the generation of
nanoporous low dielectric constant materials.(3)
Refs:
1) Trollsås, M.; Hedrick, J. L. J. Am. Chem. Soc.
1998, 120, 4644.
2) Trollsås, M.; Claesson, H.; Atthoff, B.; Hedrick,
J. L. Angew. Chem. Int. Ed. 1998, 37, 3132.
3) Hedrick, J. L.; Miller, R. D.; Hawker, C. J.;
Carter, K. R.; Volksen, W.; Yoon, D. Y.; Trollsås,
M. Adv. Mater. 1998, 10, 1049.
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PRACTICAL DETAILS:
Cost: $30 ($15 for unemployed/retired/students)
Social Hour: 6:00 PM
Dinner: 7:00 PM
Talk: 8:00 PM
Location: Michael's at Shoreline, Mountain View
DIRECTIONS:
From 101 in Mountain View, take the Shoreline Boulevard
Exit, turning toward the bay. Drive past the Shoreline
Amphitheater and go straight ahead into Shoreline
Park. After a mile or so in to the park, a sign for Michael's
will direct you to turn left into the parking lot.
Address: 2960 N Shoreline Blvd.
Restaurant phone: 650-962-1014
(do not call restaurant for reservations)
RESERVATIONS:
- Make reservations by 5PM Thursday Oct. 19
- Please provide contact information (email or phone),
affiliation, and your dinner selection.
- You should receive confirmation of your registration;
if not, please try again.
- Register through the web site (preferred),
www.ggpf.org
or contact:
Hilary Lackritz
lackritz@home.com
- We must ask you to be liable for the cost of
your dinner if you register and do not attend;
cancellations may be made up to the registration
deadline.
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