1) oligomerization
低聚
1.
Study of Isoprene Oligomerization in TiCl_4-Al (C_2H_5)_2Cl-Al(C_2H_5)Cl_2 Catalyst System;
钛系复合催化体系中异戊二烯低聚的研究
2.
A novel solvent-controlled chemoselective palladium-catalyzed oligomerization of tert-butyl acetylene was reported in this paper.
报道了溶剂对钯催化的叔丁基乙炔低聚反应化学选择性的调控作用。
3.
Catalyzed by palladium complex, the oligomerization processes of acetylenes occured to give the corresponding polysubstituted benzene derivatives or coupling compounds.
报道了不同取代炔在钯络合物催化下发生低聚反应生成芳环衍生物或偶联产物,探讨了反应立体选择性及收率,反应催化、溶剂体系,炔化合物取代因素,反应时间、温度及可能机理。
2) oligochitosan
低聚壳聚糖
1.
Progress of study on preparation of oligochitosan and chitobiose by degrading chitosan;
壳聚糖降解制备低聚壳聚糖和壳寡糖的研究进展
2.
The use of element analysis、infrared spectroscopy and x-ray diffraction for characterization of oligochitosan are examined,it was found that,comparing with raw material,both the degree of deacetylation and nitrogen content of oligochitosan prepared by radiation degradation were remarkably increased.
采用元素分析法、红外光谱法和X射线衍射法对制备的辐解低聚壳聚糖和外购的酶解低聚壳聚糖进行了分析,发现采用液态辐解法所制备寡糖样品的氮元素含量和脱乙酰度与原料相比都有明显增加。
3.
The oligochitosan with molecular mass about 5000 was obtained by cellulase depolymerization with membrane technology within 5 h and the recovery rate .
研究纤维素酶降解结合膜法制备低聚壳聚糖。
3) chitooligosaccharide
低聚壳聚糖
1.
Preparation and anticancer activity of chitooligosaccharide porphyrins metallic complexes;
低聚壳聚糖金属卟啉络合物的制备及抗肿瘤细胞活性研究
2.
Study on Preparation of Chitooligosaccharide by Photocatalysis and Cellulase;
光催化和酶法制备低聚壳聚糖的研究
3.
Study on the Chitooligosaccharide on Rice
低聚壳聚糖在水稻上的应用研究
4) low molecular weight chitosan
低聚壳聚糖
1.
Effect of Mn (Ⅱ) on the degradation preparation of low molecular weight chitosan from chitosan;
Mn(Ⅱ)对壳聚糖降解制备低聚壳聚糖的影响
2.
The O ·- 2 scavenging activity of low molecular weight chitosan(LMC) and its complexes with Cu(Ⅱ), Co(Ⅱ), La(Ⅲ) was investigated.
以 NBT/VB2 /蛋氨酸为 O· - 2 产生、检测体系 ,对自制低聚壳聚糖及其金属配合物进行了抗 O· - 2 活性研究 ,结果显示低聚壳聚糖及其金属配合物对 O· - 2 均具有明显的清除活性 。
3.
Molecular weight of water soluble low molecular weight chitosan was determinated by GFC.
红外光谱测试和理化实验结果表明，Ｃａ２＋与水溶性低聚壳聚糖发生了络合，络合反应的最佳条件是：温度２５℃，ｐＨ值９～１１，反应时间１５分钟。
5) low-molecular-weight chitosan
低聚壳聚糖
1.
The motivation for intending low-molecular-weight chitosan,the molecular of viscosity average was 1.
00×104的低聚壳聚糖,模型优化所得的较优工艺参数:质量分数为4。
6) oligomer polysulfone
聚砜低聚物
补充资料：低聚
分子式：
CAS号：
性质：制取分子量低于1万的聚合物的方法。该方法的特点是要严格控制反应物的配比、温度、催化利用量以及反应时间等因素。如低发泡聚氨酯中的聚酯或聚醚，未固化前的环氧树脂、不饱和聚酯、甲阶段的酚醛树脂都是采用低聚法制造的。
CAS号：
性质：制取分子量低于1万的聚合物的方法。该方法的特点是要严格控制反应物的配比、温度、催化利用量以及反应时间等因素。如低发泡聚氨酯中的聚酯或聚醚，未固化前的环氧树脂、不饱和聚酯、甲阶段的酚醛树脂都是采用低聚法制造的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条