No clear spherulitic morphology was observed in polarizing optical micrograph of PHB - diol.

在PHB-diol的偏光显微镜照片中观察不到明显的球晶形态.

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The water - borne polyurethane was based on polyester diol and toluene diisocyanate etc.

以聚酯多元醇、甲苯二异氰酸酯为主要原料合成了 水性 聚氨酯乳液.

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Polyether diol mainly adopts polytetramethylene ether glycol ( PTMEG ).

聚醚二醇主要采用聚四氢呋喃醚二醇 ( PTMEG ).

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Polyhexamethylene adipate diol and Polyurethane aquocmulsion based on the polyester are prepared.

以己二酸、己二醇为原料合成聚己二酸己二醇酯二醇,并制备成聚氨酯水乳液.

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In low temperature, reaction of ketone with sodium acetylide synthesized 1 - ethynyl - 2,3, 4,5 - tetramethyl - 2 - cyclopentene - 1 - ol; 1,2 - diphenyl - 2 - hydroxy - 3 - butine - 1 - one; 3,4 - diphenyl - 1,5 - hexadiine - 3,4 - diol and 3,4 - diphenyl - 3 - cyclopentene - 1 - one.

报道了在低温条件下, 以邻二酮和α-环烯酮为原料与炔钠反应,合成了2,3, 4,5-四甲基-1-乙炔基-2-烯-环戊醇、1, 2 - 二苯基 -2 - 羟基 -3 - 丁炔 -1 - 酮、3, 4 - 二苯基 -1,5-己二炔-3,4 - 二醇和3,4 - 二苯基 -3 - 环戊烯 -1 -酮4种化合物.

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Polyurethane hot - melt adhesive was prepared which polyester low molecular weight diol chain - extender, isocyanate and other.

以自制的二元醇、低相对分子质量的扩链剂和二异氰酸酯及其他助剂合成聚氨醇热熔胶粘剂.

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