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梁11111

新虫 (初入文坛)

[求助] 十二烷基三甲氧基硅烷怎么水解呀 已有2人参与

十二烷基三甲氧基硅烷怎么水解呀!!!!求助

@hwweven 发自小木虫IOS客户端
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13813921817

木虫之王 (文坛精英)

上善若水,利万物而不争


【答案】应助回帖

感谢参与,应助指数 +1
就是在酸或碱的存在下,硅氧碳键不稳定,水解成甲醇和硅羟基,而硅羟基进一步和羟基或者自身发生脱水反应
3楼2019-04-14 22:03:25
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amwtflqqug

铁杆木虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
R-Si(OCH3)3+3H2O=R-Si(OH)3+3CH3OH, R=十二烷基
R-Si(OH)3+R-Si(OH)3=R-Si(OH)2-O-(HO)2Si-R+H2O,............
十二烷基三甲氧基硅烷水解为十二烷基硅酸,然后十二烷基硅酸互相缩合逐渐形成含有十二烷基的硅酸溶胶,最终由含十二烷基的硅酸溶胶形成含十二烷基的硅酸凝胶。
2楼2019-04-13 17:01:19
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