Study on Synthesis of Polyaryletherketone Bearing Pendant Carboxyl Group and Its Modification on Epoxy Resin as Macromolecular Curing Agent 含羧基侧基聚芳醚酮的合成及其作为大分子固化剂改性环氧树脂的研究
The synthesis and drug release property of polysiloxane bearing pendant long alkyl ether group 侧链为长链烷基醚的聚硅氧烷的合成及其药物控制释放性能的研究
The effects of DNBP unit and pendant group with chloride on properties of copolymers were studied. The copolymers obtained were characterized by IR, DSC, TG, WAXD et al. 研究了DNBP结构单元及含氯侧基对共聚物性能的影响,并用IR、DSC、TG、WAXD等方法对其进行了表征。
The results showed that pendant group vinyl at 1, 2-PB had a special crosslinking behaviors, and the rearrangement of polysulfur bonds at NR/ 1, 2-PB improved the aging resistance of the blends. 结果表明,1,2-PB的乙烯基侧基所具有的特殊交联特性,以及在热氧作用下多硫键的重排,是1,2-PB对NR改性的主要原因。
Ionomers can be classified according to either the electric charge of ionic group pendant to polymer chain or distribution of ionic group, and or character of the matrix. 离聚体可按连接基团的电性、离子基团在主链上的分布、基体的性质而分成各种不同类型。
Study of syntheses and chelating properties of polyether chelating resins with pendant azobenzene or biphenyl group 含偶氮苯或联苯侧基聚醚螯合树脂的合成及其络合性能研究
Photocrosslinking and Application of Linear Copolymer P ( VS-alt-MA) Containing Oxo-spirocyclic Pendant Group 含氧螺环侧基线型共聚物的光交联和应用
The pH value had the great influenced the Pb~ ( 2+) adsorption properties of ACF, whereas oxidized ACF, ACF with pendant sulfonic acid group and Na-type ACF had good adsorption properties in a quite wide range of pH values. pH值对ACF吸附铅离子有较大影响,氧化改性ACF、含磺酸基ACF和Na型ACF在较宽的pH值范围内保持着对铅离子较高的吸附性能。
Synthesis and properties of polyacetylene having azobenzene pendant group 含偶氮苯侧链的新型三阶非线性聚炔材料的制备及性能
The adsorption isotherms of ACF, oxidized ACF and ACF with pendant sulfonic acid group had good agreements with Langmuir isotherm and Freundlich isotherm model, and Na-type ACF had a good agreement with Langmuir isotherm model. ACF、氧化改性ACF、含磺酸基ACF的吸附等温线较好的符合Langmuir,和Freundlich吸附等温线模型,Na型ACF的吸附等温线较好的符合Langmuir吸附等温线模型;
What is more, molecular chain of aliphatic polyester has not any functional or active pendant group. 其次,脂肪族聚合物分子链上没有功能化的或活性的侧基。
So preparation of a novel polyester with pendant groups like amino group, hydroxyl group and carboxyl group becomes very important. 所以合成一种新型的含有如氨基、羧基和羟基等侧基的官能化的聚酯也就显得很重要了。
Interestingly, the effects of the same pendant group inside different complexes with different backbones on the catalytic activity of catalysts may be apparently different, so far as to involve the transformation of the major and minor influencing-factors. 同时也观察到,即使为相同的挂接取代基团(冠醚或吗啉),在不同骨架的配合物中其对催化剂活性的影响可能相差甚远,甚至涉及到影响因素的主次转换。
It has also been found that, the polymerization rate of cyclic phosphoester monomer is highly depended on the structure of pendant side group and the ring substituent group when using stannous octoate as the catalyst. 研究还发现,以异辛酸亚锡为催化剂的磷酸酯单体的聚合速率与磷酸酯单体的侧基、环取代基密切相关,而且可以方便利用聚磷酸酯侧基对高分子进行功能化修饰。