1·Benzaldehyde ethylene glycol acetal was directly synthesized from benzaldehyde and ethylene glycol under microwave irradiation with cupric sulfate as catalyst.
用无水硫酸铜作催化剂，在微波辐射下催化合成苯甲醛乙二醇缩醛。
2·The authors find that the addition of appropriate amount of acetaldehyde to replace a part of formaldehyde distinctly improves the properties of the acetal adhesive.
作者发现，在反应中加入适量乙醛代替部分甲醛、可明显提高缩醛胶的性能。
3·Among the more important are nylon, acetal resins, polycarbonate resins, and ABS resins.
较重要的有尼龙、缩醛树脂、聚碳酸酯树脂和ABS树脂。
4·Various aromatic diacids and various divinyl ether compounds are heated to react in organic solvent to obtain novel ester acetal polymers.
各种芳香二酸和各种二乙烯基醚化合物在有机溶剂存在下加热反应得到新型的酯缩醛聚合物。
5·The invention relates to various aromatic diacid ester acetal polymers and a synthesis method of the aromatic diacid ester acetal polymers.
本发明涉及各种芳香二酸酯缩醛聚合物及其合成方法。