The properties of low molecule dimeric dibasic acid polyamide resin were improved by chemical modified in mass polymerization.
用本体聚合的方法，通过化学改性，使低分子二聚酸聚酰胺树脂的性能得到大幅度提高。
The molecular weight distribution of the product provided by the present invention is narrower than the product provided by the mass polymerization.
本发明所得产品的分子量分布较本体聚合所得者狭窄。
The effects of initiators and thermal initiation on a reaction rate, molecular weight and molecular weight distribution of products in a mass polymerization of styrene were investigated.
考察了热引发方式和不同种类、浓度下的引发剂引发方式在苯乙烯的本体聚合中对聚合反应速率和产品的分子量及其分子量分布的影响。
The experiments results shows that any mass, except polymerization inhibitor, has synergetic effect with catalyst and enhanced viscosity reduction rate of extra-heavy oil.
实验结果证明，除阻聚剂外，其它各物质均可与催化剂产生协同作用，不同程度地提高了稠油的降粘率。
Ultra high relative molecular mass cross-linked alkene polymer was synthesized by bulk polymerization using metal complex as catalyst and 1, 5-hexadiene as cross-linking agent.
以金属配合物为催化剂、1,5 -己二烯为交联剂，采用本体聚合法合成了交联超高相对分子质量烯烃类聚合物(简称交联聚合物)。
The effects of reaction temperature, mass of surfactant, mass of initiator and mass of PSG on the polymerization conversion were investigated.
考察了聚合温度、乳化剂用量、引发剂用量和PSG用量对细乳液聚合转化率的影响。
Polytetrahydrofuran (PTHF) with narrow molecular mass distribution was prepared by cationic ring-opening polymerization of tetrahydrofuran using H_2SO_4 · SO_3-HClO_4 system as a catalyst.
以发烟硫酸-高氯酸为催化剂，通过四氢呋喃的阳离子开环聚合合成了窄分子量分布的聚四氢呋喃(PTHF)。
Polytetrahydrofuran (PTHF) with narrow molecular mass distribution was prepared by cationic ring-opening polymerization of tetrahydrofuran using H_2SO_4 · SO_3-HClO_4 system as a catalyst.
以发烟硫酸-高氯酸为催化剂，通过四氢呋喃的阳离子开环聚合合成了窄分子量分布的聚四氢呋喃(PTHF)。
应用推荐