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1)  unsaturation ['ʌnsætʃə'reiʃən]
不饱和度
1.
Low unsaturation polyether synthesized by bimetallic cyanide complex catalysts;
双金属氰化物催化剂合成低不饱和度聚醚
2.
High molecular weight polyether polyols with narrow molecular weight distributions and ultra low levels of unsaturation and high average functionality were obtained using the presence of DMC catalyst.
并用高效的DMC双金属催化剂合成出了分子量高、分子量分布窄、不饱和度低的聚醚多元醇产品,聚醚产品中DMC的质量分数小于2×10-6,最低可达1×10-6。
3.
This paper gives the method of judging the hybridization form of central atomic orbital by unsaturation,applications and its laws.
提出了由分子的"不饱和度"判断中心原子轨道杂化方式的方法、应用及规律。
2)  low unsaturation
低不饱和度
1.
The problems in production of low unsaturation polyether with DMC catalyst were introduced.
介绍了使用DMC催化剂生产低不饱和度聚醚时存在的问题。
2.
The technical progress and future prospect of several new kinds of polyols are introduced,including free-CFC polyetber,polymer polyol,double metal cyanide(DMC)cata- lysts and polyether polyols with high molecular weight and low unsaturation.
介绍了我国聚醚多元醇工业发展的历史和现状,着重阐述了无氟聚醚多元醇、高分子质量低不饱和度聚醚和聚合物聚醚多元醇等新型聚醚多元醇及其双金属氰化物(DMc)催化剂的研究进展和工业应用。
3)  low unsaturated degree
低不饱和度
1.
A process of purifying polyether polyols with high activity and low unsaturated degree was studied.
对高活性低不饱和度聚醚多元醇的精制进行了研究。
4)  degree of unsaturation
不饱和(程)度
5)  high immovable water saturation
高不动水饱和度
6)  low unsaturated polypropylene glycol
低不饱和度聚醚
1.
Polyurethane(PU) elastomers based on low unsaturated polypropylene glycol(TDB), diisocyanate(MDI or TDI)and chain extender(1,4-BDO or MOCA) were prepared.
研究了以不同相对分子质量的低不饱和度聚醚多元醇、二异氰酸酯(MDI,TDI)和扩链剂(1,4 BDO,MOCA)为原料制备PU弹性体的力学性能。
补充资料:不饱和度
分子式:
分子量:
CAS号:

性质:试样中双键或三键化合物经催化成饱和键,所消耗氢气量表示试样的不饱和度,计算不饱和度的数值式为,式中:U为不饱和度;V为消耗氢气的体积用毫升作单位之数值;P为大气压力用帕作单位之数值;M为试样相对分子质量;t为实验时的摄氏温度数值;m为试样质量用毫克作单位之数值。

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