JPS54118500A - Preparation of straight-chain polybenzyl - Google Patents
Preparation of straight-chain polybenzylInfo
- Publication number
- JPS54118500A JPS54118500A JP2494178A JP2494178A JPS54118500A JP S54118500 A JPS54118500 A JP S54118500A JP 2494178 A JP2494178 A JP 2494178A JP 2494178 A JP2494178 A JP 2494178A JP S54118500 A JPS54118500 A JP S54118500A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- ferric
- polybenzyl
- straight
- chain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
PURPOSE: To obtain a straight-chain polybenzyl by polycondensation of a hagenated benzyl in the presence of an iron oxide prepared through thermal decomposition of ferrous sulfate as a catalyst.
CONSTITUTION: An ferric oxide prepared by thermal decomposition of ferrous or ferric sulfide is used as a catalyst in polycondensation of a halogenated benzyl. In the preparation of the catalyst, ferrous sulfate is heated in an atmosphere of air or nitrogen under a reduced or an atmospheric pressure at 250W750°C for 30 minutesW4 hours; ferric sulfate, at 550W750°C, and thermally decomposed into ferric oxide which is used as the catalyst to give a straight-chain polybenzyl free from branches. The catalyst has specificity. Ferric oxide prepared by heating ferric hydroxide has no effect, ferric oxide from nickel or cobalt sulfate which is a homologue compound of iron is inert.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2494178A JPS54118500A (en) | 1978-03-07 | 1978-03-07 | Preparation of straight-chain polybenzyl |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2494178A JPS54118500A (en) | 1978-03-07 | 1978-03-07 | Preparation of straight-chain polybenzyl |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54118500A true JPS54118500A (en) | 1979-09-13 |
Family
ID=12152057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2494178A Pending JPS54118500A (en) | 1978-03-07 | 1978-03-07 | Preparation of straight-chain polybenzyl |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54118500A (en) |
-
1978
- 1978-03-07 JP JP2494178A patent/JPS54118500A/en active Pending
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