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Preparation of High‐Heat‐Resistant Silicone Hollow Particles.

Authors :
Nishi, Hyota
Ishidate, Shintaro
Amasaki, Ryuta
Nakamoto, Reina
Katsube, Shinya
Suzuki, Nozomu
Suzuki, Toyoko
Minami, Hideto
Source :
Macromolecular Reaction Engineering. Dec2024, p1. 7p. 8 Illustrations.
Publication Year :
2024

Abstract

Single hollow particles are used in various fields, particularly in thermal insulation materials, owing to their low thermal conductivity attributed to encapsulated air properties. “The self‐assembling phase separated polymer (SaPSeP) method” is an original hollowing method that is proposed by this laboratory 25 years ago. Most hollow particles prepared by the SaPSeP method have carbon, oxygen, and hydrogen polymer shells, which lack sufficient heat resistance. In this study, hollow particles with a silicone shell, which is highly heat‐resistant, are prepared using the SaPSeP method using a trimer of 3‐methacryloxypropylmethyldimethoxysilane (MPDS). The MPDS trimer (3MPDS) is synthesized through the sol–gel reaction of MPDS with a basic aqueous solution. Additionally, hollow particles are prepared using a new silicone oligomer composed of MPDS and dimethoxymethylvinylsilane (DMVS). Both hollow particles prepared from 3MPDS and from a new silicone oligomer composed of MPDS and DMVS showed high heat resistance. They maintained their hollow structure even when exposed to temperatures up to 900 °C. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
1862832X
Database :
Academic Search Index
Journal :
Macromolecular Reaction Engineering
Publication Type :
Academic Journal
Accession number :
181801763
Full Text :
https://doi.org/10.1002/mren.202400046