THE EFFECT OF THE ACID CATALYST ON THE PREPARATION OF MQ SILICONE RESINS

Your Location：

Home >

Browse articles >

THE EFFECT OF THE ACID CATALYST ON THE PREPARATION OF MQ SILICONE RESINS

Papers | Updated：2021-06-21

- THE EFFECT OF THE ACID CATALYST ON THE PREPARATION OF MQ SILICONE RESINS
- Vol. 17, Issue 5, Pages: 429-433(1999)
- Affiliations：
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：20 October 1999
- Accepted：
Scan QR Code
THE EFFECT OF THE ACID CATALYST ON THE PREPARATION OF MQ SILICONE RESINS[J]. 1999, 17(5): 429-433.
DOI：

THE EFFECT OF THE ACID CATALYST ON THE PREPARATION OF MQ SILICONE RESINS[J]. 1999, 17(5): 429-433. DOI：

摘要

MQ silicone resins were prepared through hydrolytic condensation of ethyl polysilicate ortetraethoxysilane and hexamethyl disiloxane. The unit ratio of the MQ resins was determined by 29Si-NMR.The relationship of the unit ratio of the product resins with that in the feed was studied. When the reactionwas catalyzed by aqueous hydrochloric acid

and the unit ratio of M to Q in the feed was more than 1

the unitratio of the product was usually lower than that of the feed. The MQ silicon with an unit ratio of M/Q>2 could not be obtained.However if the reaction was catalyzed by concentrated sulfuric acid and the reverse hydrolysis process was employed

MQ silicone resin with very high M/Q ratio was successfully prepared.

Abstract

and the unit ratio of M to Q in the feed was more than 1

MQ silicone resin with very high M/Q ratio was successfully prepared.

关键词

Keywords

references

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Manipulating Hierarchical Aggregation Structure via Film-forming Kinetics Enables Organic Photovoltaics over 20% Efficiency

Sequence-encoded Conformation Pathways in Viscoelastic Microphase Separation of Multiblock Copolymers

End-group and Side-chain Dual-engineering of Selenium-fused Acceptors for 20.08% Efficiency Polymer Solar Cells with Low Energy Loss

Enhancing Processability of Phenylethynyl-terminated Imide Oligomers and Properties of Cured Polyimides via ―CF3 Incorporation

Multiple-Responsive Chiral Hydrogels from Helical Dendronized Poly(phenylacetylene)s

Related Author

No data

Related Institution

No data

⁰