考察了大孔强酸性树脂对1,4 丁二醇脱水制四氢呋喃的催化作用。
The catalysis of big pore strong acid resin for 1,4-butanediol dehydration to tetrahydrofuran is investigated.
本论文主要研究了以四氢糠醇为原料合成吡啶的工艺。
The process for the synthesis of pyridine using tetrahydrofurfuryl alcohol (THFA) as material was researched in this article.
以磷酸二氢铵、季戊四醇、三聚氰胺及丙烯酸树脂为原料研制了一种超薄膨胀型丙烯酸树脂钢结构防火涂料。
The title super-thin fire retardant intumescent coatings for steel structure is prepared with monobasic ammonium phosphate(ADP), pentaerythritol, melamine, and acrylic resin.
采用一步法合成以4 ,4 '-甲烷二环已基二异氰酸酯(HMDI)、扩链剂1,4 -丁二醇(BDO)为硬段,聚四氢呋喃醚(PTMG)为软段的脂肪族聚氨酯。
The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).
开发了一种镍基催化剂,该催化剂用于糠醇加氢制备四氢糠醇时表现出良好的性能。
A new Ni-supported catalyst for the hydrogenation of furfural alcohol(FA)to tetrafurfuralalcohol(THFA)was developed, and the related experimental studies were carried out.
当聚四氢呋喃二醇与癸二醇的重量配比小于70/30时,共聚物具有明显的液晶性。
These polymers were found to be liquid crystalline when the feed ratio of poly(oxytetramethylene)glycol to 1,10-decanediol was less than 70 to 30.
当聚四氢呋喃二醇与癸二醇的重量配比小于70/30时,共聚物具有明显的液晶性。
These polymers were found to be liquid crystalline when the feed ratio of poly(oxytetramethylene)glycol to 1,10-decanediol was less than 70 to 30.
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