Glass, Volume 22 |
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Page 44
Typical electron donor molecules such as NH3 , acetone , acetonitrile , analine ,
and pyridine are bound covalently to surface OH groups with hydrogen bridges ,
for example , at boron centers on the surface ( Winde et al . , 1977 ) . The acidity ...
Typical electron donor molecules such as NH3 , acetone , acetonitrile , analine ,
and pyridine are bound covalently to surface OH groups with hydrogen bridges ,
for example , at boron centers on the surface ( Winde et al . , 1977 ) . The acidity ...
Page 46
An esterification to Si - 0 - C ( O ) - R groups is possible with carbonic acids , acid
chlorides , or anhydrides ( Hair , 1967 ) ... Transformations with metal hydrides ,
for example LiAlH4 , lead to formation of H2 , resulting in an Si - O - Lit group .
An esterification to Si - 0 - C ( O ) - R groups is possible with carbonic acids , acid
chlorides , or anhydrides ( Hair , 1967 ) ... Transformations with metal hydrides ,
for example LiAlH4 , lead to formation of H2 , resulting in an Si - O - Lit group .
Page 47
SUBSTITUTION FOR OH GROUPS X , - OH + RZ + X , - Z + R2OH Examples of
this substitution are chlorination with HCI , CCl4 , and Cl , as RZ , which
quantitatively react to SiCl groups above 623 K ( Peri , 1966 ) or with SOCl2 (
Folman ...
SUBSTITUTION FOR OH GROUPS X , - OH + RZ + X , - Z + R2OH Examples of
this substitution are chlorination with HCI , CCl4 , and Cl , as RZ , which
quantitatively react to SiCl groups above 623 K ( Peri , 1966 ) or with SOCl2 (
Folman ...
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Contents
Water in Glass | 75 |
Applications | 121 |
Gel Method for Making Glass | 129 |
Copyright | |
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acid addition adsorption alkali alkoxide analysis applied atoms band Bartholomew bond bulk calculated cause Ceram Chem chemical clusters coefficient components composition concentration constant contraction crack crystals curve decrease dependence depth determination developed discussed distribution Doremus effect energy equation et al example expansion experimental failure fatigue fibers formation formed fracture function geometry give given glass surfaces groups heating higher hydrated hydrolysis hydrosilicate important increase influence ions Kamiya layer lead length load lower material mean measured melting metal method mole observed obtained occurs oxide phase Phys possible prepared pressure processes produced propagation properties range ratio reaction region samples seal shown in Fig shows silicate glasses SiO2 soda-lime Solids solution strain strength stress structure studies Table technique temperature thermal tion values vapor viscosity water content