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聚硅烷
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聚硅烷
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聚硅烷
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聚硅烷
以硅原子为主链,有机基团为侧基的一类σ共轭聚合物。其中R1和R2为氢原子、烷基、烃基或芳香基团。其主要合成方法为二氯硅烷与碱金属(钠、钾、锂)脱氯缩合(孚兹偶合)、含氢硅烷均相脱氢偶合、烷氧基二硅烷催化歧化、环硅烷开环聚合及掩蔽二硅烯阴离子开环聚合等。
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Jade Dragonfly
jade dragon of the Hongshan culture
Jade Dragon Snow Mountain Scenic and Historic Area
jade elephant from the Tomb of Fuhao
Jade Emperor
Jade Emperor pavilion at Baoshan
Jade Figures and Spirit Beast in the collection of the Palace Museum
Jade Figure with Wide Handle on the Waist from Fuhao Tomb
Jade Flying Godness of the Tang Dynasty
Jade Gangmao Yanmao of the Han Dynasty
Jade Garden
jade ge-dagger ax from Erlitou Site
Jade Ge from Sanxingdui
jade goblet
Jade Goddess
jade gui (vessel)
Jade Hairpin
jade-handle shaped wares from Erlitou Culture
jade hat button of the Yuan Dynasty
Jade Hawk from Lingjiatan Site
Jade Huang of Lingjiatan Culture
jade identification
Jade-inlayed Lacquered Coffins from Tombs of Marquises of Western Han Dynasty
jadeite
jadeite Chinese cabbage
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更新时间:2026/6/5 12:28:13