公开(公告)号：US20170298158A1

公开(公告)日：2017-10-19

申请号：US15641492

申请日：2017-07-05

Applicant: University of South Carolina

Inventor： Lei Wang ,  Brian C. Benicewicz

IPC: C08F126/10 ,  C07D295/194 ,  C07D277/16

CPC classification number: C08F126/10 ,  C07D277/16 ,  C07D295/194 ,  C08F292/00 ,  C08F2438/03 ,  C08F226/10

Abstract: Nanoparticles having a plurality of PVP chains covalently bonded to a surface of the nanoparticle are provided, along with their methods of formation and the RAFT agents for the polymerization of the PVP chains. RAFT agents are generally provided, along with their methods of formation and use. Methods are also generally provided for grafting a PVP polymer onto a nanoparticle. In one embodiment, the method includes: polymerizing a plurality of monomers in the presence of a RAFT agent to form a polymeric chain covalently bonded to the nanoparticle.

公开(公告)号：US20140343233A1

公开(公告)日：2014-11-20

申请号：US14359728

申请日：2012-11-21

Applicant: UNIVERSITY OF SOUTH CAROLINA ,  RENSSELAER POLYTECHNIC INSTITUTE

Inventor： Brian C. Benicewicz ,  Peng Tao ,  Ying Li ,  Linda Schadler Feist ,  Richard W. Siegel ,  Anand Viswanath

IPC: C08L83/04

CPC classification number: C08L83/04 ,  C08G77/30 ,  C08K3/36 ,  C08L83/08

Abstract: Silicone-based nanocomposites that include a plurality of multimodal nanoparticles dispersed within a silicone-based polymeric matrix are provided. Each of the multimodal nanoparticle has a first plurality of long silicone compatible polymeric chains and a second plurality of short silicone compatible polymeric chains grafted onto a surface of a nanoparticle (e.g., an inorganic nanoparticle, such as silica, alumina, titania, indium tin oxide, CdSe, etc.), with the short silicone compatible polymeric chains present on each multimodal nanoparticle at a higher grafting density than the long silicone compatible polymeric chains. Methods are also provided for forming a silicone-based nanocomposite.

Abstract translation: 提供了包含分散在硅氧烷基聚合物基质内的多个多峰纳米颗粒的基于硅氧烷的纳米复合材料。 每个多峰纳米颗粒具有第一多个长硅氧烷相容的聚合物链和接枝到纳米颗粒表面上的第二多个短硅氧烷相容的聚合物链（例如，无机纳米颗粒，例如二氧化硅，氧化铝，二氧化钛，氧化铟锡 ，CdSe等），其中短的硅氧烷相容的聚合物链以比长硅氧烷相容的聚合物链更高的接枝密度存在于每个多峰纳米颗粒上。 还提供了形成硅氧烷基纳米复合材料的方法。