University of California

Cornell Research Foundation Inc.

Edward J Kramer

Glenn H Fredrickson

Craig Jon Hawker

Christopher Kemper Ober

Damien Montarnal

Jianguo Wang

Seung-Heon Lee

Pierre M Petroff

Frédéric S Diana

Glenn H Frederickson

Antonio Badolato

Guillermo C Bazan

Alan J Heeger

Michael L Chabinyc

Atsushi Hotta

Nathaniel A Lynd

Sitaraman Krishnan

Qin Lin

Chan Luo

Shrayesh Naran Patel

Yingdong Luo

Steve Diamanti

Vikram Khanna

Zhigang Wang

Raffaele Mezzenga

Kate Barteau

A method for enhancing charge carrier mobility of a field-effect transistor device. The method comprises generating uniaxial nanogrooves on a substrate and blade coating a solution comprising a semiconducting polymer onto the substrate. The polymer solution is spread onto the substrate in a direction parallel to the nanogrooves and a main-chain axis of the polymer is parallel to the nanogrooves. The semiconducting polymer can be then annealed, so that a polymer film is formed which is layered on top of the substrate, with polymer chains aligned parallel to a direction of charge carrier movement.

Blade coating on nanogrooved substrates yielding aligned thin films of high mobility semiconducting polymers

The invention provides compositions and methods for inducing and enhancing order and nanostructures in organosilicon block copolymers compositions by including certain organic additives in such compositions that include one or more moieties comprising a hydrogen bond acceptor or a hydrogen bond donor. Such block copolymer compositions may be used, for example, as a mask for lithographic patterning as is used, for example, during various stages of semiconductor device fabrication.

Compositions for controlled assembly and improved ordering of silicon-containing block copolymers

Junction-functionalized block copolymers can be used in forming nanostructures. A junction-functionalized block copolymer can include a first polymer block joined to a second polymer block by a junction, where the junction includes one or more electrostatically charged moieties. The block copolymer can include a moiety of formula (I):A-J-B&#x2003;&#x2003;(I)where A is a first polymer block, B is a second polymer block, where the A block and the B block are chemically dissimilar, and J is a junction linking the A block to the B block, and including one or more electrostatically charged moieties.

Junction-functionalized block copolymers

Polyolefin block and graft copolymers comprised of two or more semicrystalline polyolefin blocks or grafts and one or more amorphous polyolefin blocks can be blended with a low molecular weight fluid diluent that preferentially locates within and swells the amorphous domains of the block or graft copolymer, while preserving the crystallinity of the semicrystalline block domains. After mechanical or thermomechanical processing, such compositions combine softness with high strength and high recoverable elasticity. Compositions are also disclosed whereby the diluent species is removed from the composition, either before or after the mechanical or thermomechanical processing, in order to create a strong elastic material with an ultra-low entanglement density within the amorphous domains.

Soft and strong elastomeric compositions from semicrystalline-amorphous polyolefin block copolymers

A polymer electrolyte composition including a metal salt and at least one polymer comprising a poly(glycidyl ether), where the at least one polymer is amorphous at ambient temperature. The poly(glycidyl ether) polymer can be a blend of poly(glycidyl ether) polymers, can be a poly(glycidyl ether) polymer blended with a mechanically strong solid polymer, and can be a block of a block copolymer that also includes a polymer block forming a mechanically strong solid polymer.

Polymer electrolytes based on poly(glycidyl ether)s

The invention provides polymers, methods of preparing polymers, and compositions that include polymers, wherein said polymers include a plurality of two-carbon repeating units in a polymer chain, wherein one or more of the two-carbon repeating units of the polymer chain have tertiary amine or pyridine-containing substituents; and at least about 10% of the nitrogen atoms of the tertiary amine or pyridine-containing substituents are quaternized with alkyl groups or with an alkyl group that contains one or more ethylene glycol groups. The alkyl or ethoxylated alkyl groups can also be at least partially fluorinated. The polymers can be used to provide antimicrobial surfaces and antifouling coatings.

Polymers containing quaternized nitrogen

A method of preparing a polymer having a tapered block copolymer structure. The method comprises polymerizing a first olefin monomer and a different second olefin monomer in the presence of a catalyst supporting living or quasi-living polymerization. In certain embodiments, the catalyst comprises two neutral metal complexes. In preferred embodiments, a tapered block copolymer structure is formed by adding one monomer in a single batch at the start of the polymerization reaction, and adding a second monomer throughout the course of the reaction. The present invention also provides polymers having one or more tapered block copolymer sections, and compositions based on these polymers.

Block copolyolefins possessing a tapered structure

A method and resultant device, in which metal nanoparticles are self-assembled into two-dimensional lattices. A periodic hole pattern (wells) is fabricated on a photoresist substrate, the wells having an aspect ratio of less than 0.37. The nanoparticles are synthesized within inverse micelles of a polymer, preferably a block copolymer, and are self-assembled onto the photoresist nanopatterns. The nanoparticles are selectively positioned in the holes due to the capillary forces related to the pattern geometry, with a controllable number of particles per lattice point.

Fabrication method for arranging ultra-fine particles

A 'high internal phase polymeric emulsion' ('HIPPE') composition is described which comprises an emulsion of a discrete phase (component A) and a continuous phase (component B), wherein the volume fraction of the discrete phase is the majority fraction (on a volume basis) of the total volume of the emulsion. A compatibilizer, component C, is used to lower the interfacial tension between the phases containing components A and B. A process is described for creating such HIPPE composition in which the A component is a colloidal polymer particle.

Process for creating high internal phase polymeric emulsions

Compounds having the formula F(CF.sub.2).sub.q --(CH.sub.2).sub.p-1 --COX' wherein q ranges from 6-15, p ranges from 3-15 and X' is halogen are useful as reactants for hydroxylated block copolymers or polyamines to produce fluorinated polymers.

Semifluorinated acid halides and fluorinated polymers produced therefrom

Fluorinated polymers for use per se or in a blend with compatible homopolymer or copolymer which is not fluorinated, for providing a low surface energy (anti-stick, non-wetting, low friction) surface which is stable on immersion in water, has a weight average molecular weight ranging from 10.sup.3 to 10.sup.6 and comprises backbone containing (a) methylene groups and (b) side chain bearing groups with side chain on each side chain bearing group having the formula --Q--(CF.sub.2).sub.q F wherein Q comprises alkylene moiety and wherein the fluoroalkyl group attached to Q is spaced by r atoms from the atom in the backbone to which Q is attached, wherein q ranges from 6 to 15, r ranges from 6 to 18, and the ratio of q to r ranges from 0.6:1 to 1.8:1. Preferred fluorinated polymers include semifluorinated block copolymers of modified isoprene and styrene and semifluorinated ionenes.

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Santa Barbara, CA, United States of America

Edward J Kramer