公开(公告)号：US20160049559A1

公开(公告)日：2016-02-18

申请号：US14781481

申请日：2014-04-01

Applicant: RENSSELAER POLYTECHNIC INSTITUTE ,  UNIVERSITY OF SOUTH CAROLINA

Inventor： Ying LI ,  Peng TAO ,  Linda S. SCHADLER ,  Robert F. KARLICEK, Jr. ,  Richard W. SIEGEL ,  Lei WANG ,  Brian C. BENICEWICZ

IPC: H01L33/50 ,  H01L33/56 ,  C07F7/10 ,  C09K11/06 ,  C09K11/02

CPC classification number: H01L33/504 ,  B82Y30/00 ,  C07F7/10 ,  C08G79/02 ,  C09K11/02 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1011 ,  C09K2211/1048 ,  H01L33/56

Abstract: Provided is a phosphor-functionalized nanoparticle that includes an inorganic nanoparticle core; surface polymer brushes that include a plurality of long-chain polymers bonded to the surface of the inorganic nanoparticle core, said long-chain polymers each having molecular weight greater than 500, and a plurality of short-chain polymers bonded to the surface of the inorganic nanoparticle core, said short-chain polymers each having molecular weight less than 0.5 times the average molecular weight of the long-chain polymers; and one or more organic phosphors bonded to at least one of the inorganic nanoparticle core and one or more of the plurality of short-chain polymers. Graft density of the short-chain polymers on the surface of the inorganic nanoparticle core (σSC) is greater than graft density of the long-chain polymers on the surface of the inorganic nanoparticle core (σLC). Also provided are polymer matrices, LED's, optical systems, lighting devices, and fixtures that include the inventive nanoparticle.

Abstract translation: 提供了包含无机纳米颗粒核心的磷光体官能化纳米颗粒; 表面聚合物刷，其包括结合到无机纳米颗粒芯的表面的多个长链聚合物，所述长链聚合物各自具有大于500的分子量，以及多个键合到无机纳米颗粒表面的短链聚合物 所述短链聚合物的分子量小于所述长链聚合物的平均分子量的0.5倍; 和一种或多种结合至所述无机纳米颗粒芯和所述多种短链聚合物中的一种或多种的有机磷光体。 在无机纳米颗粒芯（SC）上表面的短链聚合物的接枝密度大于无机纳米颗粒芯表面上的长链聚合物的接枝密度（LC）。 还提供了包括本发明的纳米颗粒的聚合物基质，LED，光学系统，照明装置和固定装置。

公开(公告)号：US20170044327A1

公开(公告)日：2017-02-16

申请号：US15305767

申请日：2015-04-24

Applicant: RENSSELAER POLYTECHNIC INSTITUTE

Inventor： Ying LI ,  Linda S. Schadler FEIST ,  Chaitanya ULLAL ,  Charles S.S. GOODWIN ,  Robert F. KARLICEK, Jr.

IPC: C08G83/00

CPC classification number: C08G83/001 ,  C08G79/02 ,  C08K3/22 ,  C08K2201/00 ,  C08L83/04

Abstract: The present disclosure relates to a matrix-free polymer nanocomposite. The matrix-free polymer nanocomposite includes a plurality of polymer brush grafted nanoparticles, which form the nanocomposite in the absence of a polymeric matrix. The polymer brush grafted to the nanoparticles comprises a multimodal brush configuration having at least two different populations of polymer ligands of different lengths. The present disclosure also relates to an optic or optoelectronic component comprising a matrix-free polymer nanocomposite as described herein. The present disclosure further relates to a method of making a matrix-free polymer nanocomposite.

Abstract translation: 本公开内容涉及无基质的聚合物纳米复合材料。 无基体的聚合物纳米复合材料包括多个聚合物刷接枝的纳米颗粒，其在不存在聚合物基质的情况下形成纳米复合材料。 接枝到纳米颗粒的聚合物刷包括具有不同长度的至少两个不同聚合物配体群的多峰刷配置。 本公开还涉及包含如本文所述的无基质的聚合物纳米复合材料的光学或光电组件。 本公开还涉及制备无基质的聚合物纳米复合材料的方法。