Can I read Synthesis and Properties of Low‐dielectric‐constant Polyimides with Introduced Reactive Fluorine Polyhedral Oligomeric Silsesquioxanes on EtoBox?

Synthesis and Properties of Low‐dielectric‐constant Polyimides with Introduced Reactive Fluorine Polyhedral Oligomeric Silsesquioxanes by Yun‐Sheng Ye; Wen‐Yi Chen; Yen‐Zen Wang is a Materials Science article available to read on EtoBox.

What is Synthesis and Properties of Low‐dielectric‐constant Polyimides with Introduced Reactive Fluorine Polyhedral Oligomeric Silsesquioxanes about?

## Abstract A high‐performance, low‐dielectric‐constant polyimide (PI) nanocomposite from poly(amic acid) (PAA) cured with a reactive fluorine polyhedral oligomeric silsesquioxane (POSS) isomer was successfully synthesized. The features of this reactive fluorine POSS isomer [octakis(dimethylsiloxyhexafluoropropylglycidyl ether)silsesquioxane (OFG)] provided two important approaches (containing fluorine or being porous in the polymer matrix) of reducing the dielectric constant of PI. This reactive POSS isomer had an average of four epoxy groups and four fluorine groups on the POSS cage, and the epoxy groups could be cured with PAA to form a network framework of a PI/POSS nanocomposite. The PI/OFG nanocomposite had a high crosslinking density, high porosity (24.3%), high hydrophobicity, and low polarizability. These properties enhanced the thermal (glass‐transition temperature ∼ 362 °C) and dielectric (dielectric constant ∼2.30) properties of PI more than other POSS derivatives introduced into the PI backbone. A large number of small POSS particles (<10 nm) were embedded inside the PI matrix when the OFG content was low, whereas interconnected POSS aggregation domains were observed w

Who reads Synthesis and Properties of Low‐dielectric‐constant Polyimides with Introduced Reactive Fluorine Polyhedral Oligomeric Silsesquioxanes?

Author

Yun‐Sheng Ye; Wen‐Yi Chen; Yen‐Zen Wang

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-624X)

Published

2006

Language

EN

Field

Materials Science (Physical Sciences)