用双金属氰化物(DMC)络合催化剂可制得相对分子质量高、相对分子质量分布窄和不饱和度低的聚醚多元醇。
The polyether polyols which has higher molecular weight, narrower molecular weight distribution and lower unsaturation can be prepared by using double metal cyanide (DMC) complex catalysts.
研究了豌豆淀粉的颗粒性质，包括颗粒的形貌、X光衍射图样、链淀粉含量、分子量分布、溶解度与膨胀度等。
Some properties of the pea starch granules were studied, including microphoto, graphic form, X-ray diffraction pattern, amylose content, molecular weight distribution, solubility and swelling power.
BOPP产品的物理性能主要由树脂的分子量、等规度、分子量分布这三个基本物性决定。
BOPP physics performance can be mainly decided by molecular weight, molecular weight distribute and isotactic of resin.
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