| 1. | The effects of mmt ( ommt ) on the terminal polymer structure are also studied by viscosity method , ft - ir and xrd
通过粘度法、 ft - ir和xrd等测试方法研究了聚合产物的结构。 |
| 2. | The factors of influencing coordinate polymer structure , such as metal ions and ligand , were discussed . the reaction conditions of coordinate polymer were studied
摘要讨论了影响配合物结构的一些因素；金属离子和配体等。也研究了配位聚合物的反应条件。 |
| 3. | After 20 milling cycles , the particle size of pa6 can be reduced from original 3 - 4mm to around 1 m . some particles even reached nano scale ( 40 - 80nm ) after 30 milling cycles . pan - milling has great influence on polymer structure
经过20次碾磨循环，初始粒径为3 4mm的尼龙6粒子平均粒径可减少到3 m左右，经过30次碾磨循环，部分粒子粒径甚至可达纳米级( 40 80nm ) 。 |
| 4. | The infrared spectroscopy , transmission electron microscopy , light scattering and x - ray photoelectron spectroscopy are used to characterize the polymer structure and the morphology of the latex particles . the results demonstrate that composite latex with core / shell morphology is indeed successfully prepared
利用红外光谱、透射电镜、激光粒度仪、表面能谱分析等手段对聚合产物的化学结构及乳胶粒粒子形态进行了表征。 |
| 5. | The development of a two - component elastic polyurethane sealing material for the anti - seepage of channel is described herein , and then the performed polymer structure , the molar ratio of iaocyanate to hydroxide radical and the effects from the components of the compounded curing agent on the performance of the material are discussed as well
摘要介绍了一种用于管道防渗止水的双组分聚氨酯弹性密封材料的开发，并讨论了基剂预聚体聚合物结构、异氰酸酯和羟基的摩尔比以及复合固化剂组分对材料性能的影响。 |
| 6. | Abstract : polyphenylacetylenes were synthesized by rn ( nbd ) cl 2 and wcl6 / ph4sn catalyst systems in n2 at room temperature . polymers with high yield and high molecular weight were obtained . their structures were characterized by uv , ir , nmr and gpc , respectively . the fluorescence of the polymer solution with different concentration was investigated using variable excitation wavelength from uv to visible region . the relation between fluorescence and polymer structure was studied . the results showed that the molecular chain structure has great influence on fluorescence of the polymers . the emitting peak wavelength of fluorescence for the polymer of high stereoregularity is independent of solution concentration and excitation wavelength . the emitting peak wavelength of fluorescence for the polymer with disordered molecular chain arrangement varies with changing the solution concentration and excitation wavelength , and different emission sites in molecular chains and low emitting yield are shown . the measurement and analysis of fluorescence spectroscopy of polyphenylacetylenes may provide some useful information to judge the molecular chain arrangement in some conjugated polymers
文摘:使用有机金属铑、金属钨/四苯基锡催化剂体系聚合苯乙炔，分别获得了高产率和高分子量的聚苯乙炔.使用uv ， ir ， nmr ， gpc等分别对聚合物结构进行了表征.采用不同波长的激发光对聚合物荧光性能进行研究，详细分析了聚合物结构与荧光性能之间的关系.研究结果发现，不同聚合物结构对聚合物荧光性能产生很大影响，规整性高的聚合物，将有较高的发光量子效率；聚合物规整性差，将可能导致多个荧光发光结构点，其荧光强度降低.聚合物荧光光谱研究将对某些共轭聚合物结构的规整性分析提供一些有用的信息 |
| 7. | Polymer / montmorillonite ( mmt ) nanocomposites is a kind of novel composites and arouses great interest due to its excellent synthetical properties . in this paper , different polymerization methods are used to prepare pmma / mmt nanocomposites , whose thermal property and mechanical properties are obviously improved . the effects of mmt and organo - mmt ( ommt ) on the bulk polymerization mechanisms of methyl methacrylate and terminal polymer structure are also studied
本文通过不同的聚合方式制备得聚甲基丙烯酸甲酯蒙脱土纳米复合材料，改善了材料的耐热性能和力学性能等；重点研究了蒙脱土( mmt )以及有机蒙脱土( ommt )对本体法甲基丙烯酸甲酯( mma )聚合反应机理以及聚合物结构的影响。 |
| 8. | The organosilicone monomer - [ tris ( trimethylsiloxy ) silyl ] propyl methacrylate was synthesized by trimethylchlorosilane ( tmcs ) and - ( trimethyloxysilyl ) propyl methacrylate ( kh - 570 ) , a improved synthetical method of organosilicone monomer tris with higher silicone content than raw monomer - ( trimethyloxysilyl ) propyl methacrylate ( kh - 570 ) was raised , and poly - - [ tris ( trimethylsiloxy ) silyl ] propyl methacrylate latex was prepared by emulsion polymerization , ir was used to study the polymer structure
然后，以此单体为原料用乳液聚合法制备了有机硅均聚物( ptris )乳液、有机硅丙烯酸酯共聚( p ( mma - co - tris ) )乳液和聚甲基丙烯酸甲酯( pmma )乳液。 |
