Patent · US Active

Birefringent polymer brush structures formed by surface initiated ring-opening metathesis polymerization

US9234985B2 · kind B2 · utility

4Cited by

41References

27Claims

0Family size

Assignee

CALIFORNIA INSTITUTE OF TECHNOLOGY · US

Inventors

Robert H. Grubbs · La Cañada Flintridge, US
Raymond Weitekamp · Glendale, US

Key dates

Filing date	Oct 23, 2013
Grant date	Jan 12, 2016
Priority date	—
Expiry date	Mar 6, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The disclosure describes a polymer brush structure exhibiting birefringence, said polymer brush structure comprising a plurality of substantially parallel oriented polymers and characterized by a longitudinal z-direction having a first refractive index, nz, and a lateral x,y-direction having a second refractive index, nx,y, wherein the difference, Δn, between the first refractive index and the second refractive index is in a range of about 0.1 to about 0.6, as measured by ellipsometry and fit to a Cauchy analytical model.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.