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Improved synthesis method of polycarbosilane
The invention discloses an improved synthesis method of polycarbosilane, which comprises the following steps: cracking to synthesize cyclosilane, removing front fractions, carrying out synthesis reaction and distillation purification, and properly increasing the highest reaction temperature of the synthesis reaction. The method has the beneficial effects that a normal-pressure high-temperature cracking method is adopted to replace a high-pressure synthesis method, an adopted synthesis device is simple, the safety is high, large-scale batch production is easy to realize, and the synthesis costis relatively low; the highest temperature of the synthesis reaction is increased, and the synthesis yield and the molecular weight of the polycarbosilane are increased; no reagent or solvent is addedin the cyclosilane synthesis process, the problem of difficult post-treatment is solved, and the synthesis method is low-carbon and environment-friendly.
本发明公开了一种聚碳硅烷的改进合成方法，包括以下步骤：裂解合成环硅烷、去除前馏分、合成反应和蒸馏提纯，适当提高合成反应的最高反应温度。本发明的有益效果：采用常压高温裂解法代替高压合成法，合成装置简单，安全性好，容易规模批量生产，合成成本相对较低；提高合成反应最高温度，提高聚碳硅烷的合成收率和分子量；合成环硅烷过程没有添加任何试剂和溶剂，免去后处理难问题，合成方法低碳环保。
Improved synthesis method of polycarbosilane
The invention discloses an improved synthesis method of polycarbosilane, which comprises the following steps: cracking to synthesize cyclosilane, removing front fractions, carrying out synthesis reaction and distillation purification, and properly increasing the highest reaction temperature of the synthesis reaction. The method has the beneficial effects that a normal-pressure high-temperature cracking method is adopted to replace a high-pressure synthesis method, an adopted synthesis device is simple, the safety is high, large-scale batch production is easy to realize, and the synthesis costis relatively low; the highest temperature of the synthesis reaction is increased, and the synthesis yield and the molecular weight of the polycarbosilane are increased; no reagent or solvent is addedin the cyclosilane synthesis process, the problem of difficult post-treatment is solved, and the synthesis method is low-carbon and environment-friendly.
本发明公开了一种聚碳硅烷的改进合成方法，包括以下步骤：裂解合成环硅烷、去除前馏分、合成反应和蒸馏提纯，适当提高合成反应的最高反应温度。本发明的有益效果：采用常压高温裂解法代替高压合成法，合成装置简单，安全性好，容易规模批量生产，合成成本相对较低；提高合成反应最高温度，提高聚碳硅烷的合成收率和分子量；合成环硅烷过程没有添加任何试剂和溶剂，免去后处理难问题，合成方法低碳环保。
Improved synthesis method of polycarbosilane
一种聚碳硅烷的改进合成方法
ZHANG JI (author) / WANG JUNXIAN (author) / LI KAINA (author)
2020-04-17
Patent
Electronic Resource
Chinese
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