silicon and boric-acid

silicon has been researched along with boric-acid* in 2 studies

Other Studies

2 other study(ies) available for silicon and boric-acid

Article	Year
Boric Acid as a Coupling Agent for Preparation of Phenolic Resin Containing Boron and Silicon with Enhanced Char Yield. Macromolecular rapid communications, 2019, Volume: 40, Issue:17 In this study, an innovative, facile, and low-cost method is developed to prepare phenolic resin (PR) containing boron and silicon (BSiPR). BSiPR is synthesized by a solvent-free, one-pot method using boric acid as the coupling agent instead of silane, and methyltriethoxysilane as the silicon source. The results show that boron and silicon elements are introduced into PR via BOC and BOSi structures. The char yield of the resulting resin at 800 °C is improved to 76%. The reasons for higher char yield are investigated. The formation of BOC can reduce the content of phenolic hydroxyl, which helps to decrease the weight loss. B Topics: Boric Acids; Boron; Charcoal; Formaldehyde; Materials Testing; Phenols; Polymers; Silicon; Surface Properties	2019
Formation and utility of azasilacyclopentadienes derived from silacyclopropenes and nitriles. Organic letters, 2009, Jan-15, Volume: 11, Issue:2 The copper-catalyzed insertions of nitriles into the Si-C bonds of silacyclopropenes provide azasilacyclopentadienes, which can be converted to allylic amines after reduction and protodesilylation. The enamine functionality of azasilacyclopentadienes also participates in 1,4-addition reactions and undergoes a hydroboration and oxidation sequence to form an allylic 1,2-amino alcohol. Topics: Amines; Amino Alcohols; Aza Compounds; Boric Acids; Carbon; Catalysis; Copper; Cyclopentanes; Nitriles; Silicon	2009

Article

Year

Boric Acid as a Coupling Agent for Preparation of Phenolic Resin Containing Boron and Silicon with Enhanced Char Yield.

Macromolecular rapid communications, 2019, Volume: 40, Issue:17

In this study, an innovative, facile, and low-cost method is developed to prepare phenolic resin (PR) containing boron and silicon (BSiPR). BSiPR is synthesized by a solvent-free, one-pot method using boric acid as the coupling agent instead of silane, and methyltriethoxysilane as the silicon source. The results show that boron and silicon elements are introduced into PR via BOC and BOSi structures. The char yield of the resulting resin at 800 °C is improved to 76%. The reasons for higher char yield are investigated. The formation of BOC can reduce the content of phenolic hydroxyl, which helps to decrease the weight loss. B

Topics: Boric Acids; Boron; Charcoal; Formaldehyde; Materials Testing; Phenols; Polymers; Silicon; Surface Properties

2019

Formation and utility of azasilacyclopentadienes derived from silacyclopropenes and nitriles.

Organic letters, 2009, Jan-15, Volume: 11, Issue:2

The copper-catalyzed insertions of nitriles into the Si-C bonds of silacyclopropenes provide azasilacyclopentadienes, which can be converted to allylic amines after reduction and protodesilylation. The enamine functionality of azasilacyclopentadienes also participates in 1,4-addition reactions and undergoes a hydroboration and oxidation sequence to form an allylic 1,2-amino alcohol.

Topics: Amines; Amino Alcohols; Aza Compounds; Boric Acids; Carbon; Catalysis; Copper; Cyclopentanes; Nitriles; Silicon

2009