307531-94-8

Basic information

• Product Name: PSS-(1-PROPYLMETHACRYLATE)-HEPTAISOBUTY&
• Synonyms: PSS-(1-PROPYLMETHACRYLATE)-HEPTAISOBUTY&;3-(3,5,-HEPTAISOBUTYLPENTACYCLO(9.5(3,9);3-(3,5,7,9,11,13,15-heptaisobutylpentacyclo[9.5.13,9.15,15.17,13]octasiloxan-1-yl)propylmethacrylate;pss-(1-propylmethacrylate)-heptaisobutyl substituted;METHACRYLOXYPROPYL SUBSTITUTED POLY(ISOBUTYLSILSESQUIOXANE;METHACRYLOXYPROPYLHEPTAISOBUTYL-T8-SILSESQUIOXANE, tech-95;Methacrylolsobutyl POSS
• CAS NO: 307531-94-8
• Molecular Formula: C₃₅H₇₄O₁₄Si₈
• Molecular Weight: 943.644
• Mol File: 307531-94-8.mol
• Article Data: 1

Chemical Properties

• Melting Point: 108-112 °C(lit.)
• Boiling Point: >205°C
• Flash Point: >230 °F
• Appearance: /
• Density: 1.09 g/cm³
• Vapor Pressure: 3.71E-14mmHg at 25°C
• Refractive Index: 1.483
• Storage Temp.: below 5° C
• CAS DataBase Reference: PSS-(1-PROPYLMETHACRYLATE)-HEPTAISOBUTY&(CAS DataBase Reference)
• NIST Chemistry Reference: PSS-(1-PROPYLMETHACRYLATE)-HEPTAISOBUTY&(307531-94-8)
• EPA Substance Registry System: PSS-(1-PROPYLMETHACRYLATE)-HEPTAISOBUTY&(307531-94-8)

Safety Data

• WGK Germany: 3
• TSCA: No
• Hazardous Substances Data: 307531-94-8(Hazardous Substances Data)

Usage

Uses

PSS-(1-Propylmethacrylate)-Heptaisobutyl substituted can be used as a functional monomer to prepare molecularly imprinted polymers or hybrid monolithic materials (MIPs) via reversible addition-fragmentation chain transfer polymerization (RAFT) or thermally initiated free radical polymerization reactions using suitable template molecules, cross-linker, porogenic solvent, and initiator. The resulting polymeric materials exhibited excellent polymer properties such as high thermal stability, high mechanical stability, low inflammability surface hardening, and oxidation resistance. These POSS nanostructural polymeric materials are commonly used in various biomedical applications, drug delivery, imaging reagents, catalyst supports, enzyme-like catalysis, solid-phase extraction, sensors, and in the chromatographic stationary phase.

General Description

PSS-(1-Propylmethacrylate)-Heptaisobutyl substituted silsesquioxane (POSS) is a polyhedral oligomeric silsesquioxane (POSS) with an inorganic-organic cage-like architecture made up of silicon and oxygen.

InChI:InChI=1/C35H74O14Si8/c1-27(2)20-51-38-50(19-17-18-37-35(36)34(15)16)39-52(21-28(3)4)43-54(41-51,23-30(7)8)47-57(26-33(13)14)48-55(42-51,24-31(9)10)44-53(40-50,22-29(5)6)46-56(45-52,49-57)25-32(11)12/h27-33H,15,17-26H2,1-14,16H3

Synthetic route

1,3,5,7,9,11,14-heptaisobutyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol (307531-92-6) + [3-(methacryloyloxy)propyl]trimethoxysilane (2530-85-0) → C35H74O14Si8 (307531-94-8)

Conditions	Yield
triethylamine In methanol; toluene at 25℃; for 6h; Industry scale;

Upstream product

• 307531-92-6 1,3,5,7,9,11,14-heptaisobutyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol 
• 2530-85-0 [3-(methacryloyloxy)propyl]trimethoxysilane 

Relevant articles and documents

PROCESS FOR PRODUCTION OF POWDER OF CAGE SILSESQUIOXANE COMPOUND

An object of the present invention is to provide a process for producing a powder of a cage silsesquioxane compound by simple operations. In the invention, a high-quality powder of a cage silsesquioxane compound is obtained by reacting a partially cleaved structure of a cage silsesquioxane having a specific structure with an alkoxysilane to obtain a solution containing the cage silsesquioxane compound and further by treating the solution in a thin-film distillation machine.