diol

Moreover, a heat resistant polyester polyols with forseeable molecular weight and inherent viscosity and stable synthesis techniques were prepared through regulating the THEIC/ glycerol, OH/ COOH and triol/ diol mole ratios in original components.

通过调节组分中的THEIC/甘油、羟基/羧基及三元醇/二元醇的摩尔比例，能够稳定合成工艺，制得耐热性能好、具有预定分子量和特性粘数的聚酯多元醇齐聚物。

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.

Vicinal diol can be effectively translated into azelaic acid and the corresponding dicarboxylic acid monomethyl ester.

邻二醇可以有效地转化为壬酸和相应的二元酸单甲酯。

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.

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.

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.

The changes of 8-OH-dG in the progress of carcinogenesis were detected in human bronchial epithelial cells induced by Benzo ( a) pyrene diol-epoxide ( BPDE) and sulfide nickel ( NiS) in vitro.

并利用苯并（a）芘代谢产物B（a）P二醇环氧化物（BPDE）和结晶型硫化镍（NiS）诱导的体外人支气管上皮细胞转化癌变模型，检测癌变进程中8OH dG的变化。

Objective: To develop a GC/ MS method for the determination of 3-chloropropane-1,2-diol ( 3-MCPD) in food using deuterated internal standard.

目的：建立以氘代同位素内标测定食品中3-氯-1,2-丙二醇的GC/MS方法。

Influence of Activity of Terminal OH Group of Polyester Diol on Mechanical Properties of Polyester-Based WPU

聚酯二醇端羟基活性对聚酯型水性聚氨酯力学性能的影响

To hydrate n-butylene to make sec-butanol, and then dehydrogenate to make methyl-ethyl ketone, or to oxidize to make maleic anhydride and then through low-pressure esterification hydrogenation to make 1, 4-butan-diol series products.

将正丁烯水合制仲丁醇，再脱氢生产甲乙酮，或氧化制顺酐再经低压酯氢化法生产1,4&丁二醇系列产品。

The synthesis of tetrahydrofuran copolymerized GAP binder includes two steps: THF and ECH ( epichlorohydrin) are copolymerized with the help of catalyst ( BF3 ·+ diol) through cation ring opening copolymerization to hydroxyl terminated THF-ECH copolyethers;

四氢呋喃共聚型GAP粘合剂的合成分两个步骤：a.通过四氢呋喃（THF）和环氧氯丙烷（ECH）在BF3·加二元醇催化下的阳离子开环聚合反应合成端羟基THF－ECH共聚醚；

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.

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 ).

Centalum ( 2-methyl-1-phenyl-3-butyne-1,2-diol) The video is about Nottingham Trent University.

这一部有关诺丁汉特伦大学的录像。