查询词典 poly

Self-crosslinkable latex at room temperature with high elasticity is prepared when N-hydroxymethyl acrylamide is used as self-crosslinkable monomer,and poly solidum maleate is applied as protective colloid,and pre-emulsified and semi-continuous seeded emulsion polymerization is adopted.

采用N-羟甲基丙烯酰胺为自交联单体，聚马来酸钠为保护胶体，采用预乳化半连续种子乳液聚合工艺，制备出高弹性室温自交联乳液。

A novel polymer of Poly(diglycidyl maleate-co-stearyl methacrylate) was synthesized and its structure was characterized by ~1H NMR. Its self-assembly behavior was studied in different solvents. It was found that vesicles and tubule-liked aggregates can be obtained through self-assembly of P(DGMA-co-SMA)/THF/EtOH system. And spheral aggregates were obtained in P(DGMA-co-SMA)/THF/H_2O system while the spheral aggregates were converted into rod-liked aggregates and line-liked aggregates after aged for different time.

合成了带含环氧基侧链和十八烷基侧链的聚(马来酸二缩水甘油酯-co-甲基丙烯酸十八酯)，用~1H NMR对所得的共聚物进行了表征；研究了其在选择性溶剂中的自组装行为，发现P(DGMA-co-SMA)／THF／EtOH体系可以通过自组装形成囊泡形自组装体和支化的管状自组装体，P(DGMA-co-SMA)／THF／H_2O体系最初自组装形成球形自组装体，随着陈化时间的延长，球形自组装体逐渐融合成长条形自组装体和线形自组装体；探讨了自组装过程的机理，建立了可能的自组装过程模型。

The many lattice twist and dislocations can be observed by the studies on high-resolution electron microscopy of solution-crystallized PEKK crystals. It is the lattice twist and dislocations within crystals that give rise to gradual branching and narrowing of spherulitic lamellae towards to tips of crystal growth and consequently, the characteristics of morphology and crystal structure of poly s can be posed in the molecular level.

通过其高分辨电子显微像的研究，直接观察到了组成晶体的点阵扭曲和位错，并揭示出由分子链的堆砌错误引起的点阵扭曲和位错是导致球晶晶片展现出连续的分叉并向着晶体的增长前沿逐渐变窄的直接原因，从分子水平上揭示了聚芳醚酮酮的结晶形态的特点。

Synthesis of poly catalyzed with stannous oxalate ;2. The thermal decomposition of stannous oxalate was investigated by differential scanning calorimetry.

以草酸和氧化亚锡为原料，用室温固相一步反应法合成了草酸亚锡，用红外光谱和热重技术对产物进行了表征。

High molecular weight poly was obtained from succinic acid and 1,4-butanediol through a polycondensation process.

以丁二酸、丁二醇为原料，通过直接缩聚反应合成了高分子量聚丁二酸丁二醇酯。

Poly（p-vinylbenzyl succinimide） resin,which can be abbreviated to succinimide resin,was prepared by the reaction of chloromethylated polystyrene with succinimide in the presence of base. The succinimide resin was characterized by diffuse reflectance infrared Fourier transform spectrometry and elemental analysis.

摘 要：在碱性条件下，氯甲基化聚苯乙烯与丁二酰亚胺反应合成了聚（对乙烯基苄基丁二酰亚胺）树脂，采用元素分析、红外光谱对合成树脂的组成进行了表征。

The negatively charged sulfonic acid groups was readily introduced through the reaction of the terminal anhydride groups of the anhydride-terminated hyperbranched poly precursor with the amino groups of sulfanilic acid before chemical imidization.

研究表明，在聚合过程的聚酰胺酸阶段，采用过量的邻苯二甲酸酐或苯胺对超支化聚酰亚胺的端氨基或端酸酐基团进行的封端改性切实可行，改性反应可进行地相当彻底。

A practical charged membrane which prepared from the blends of sulphonated polyphenylene sulfide/poly can be considered as a 3D lattices. The experimental conductivity was related with a 3D simulation and the result showed the membrane has a transition from insulator to conductor at the ratio of charged components SPPS about 0.144. Obviously, this value falls in the range of a theoretical simulation for a 3D lattices.

由於实际的荷电膜也可看作为三维格栅体系，因此，可用三维格栅体系程序对不同荷电分率膜的电导数据进行拟合，结果表明，对於实际的磺化聚苯硫醚／聚醚碸共混膜，当荷电组分SPPS的分率达到0.144时，共混膜即会从不良导体变为良导体，显然该值落在理论值0.1~0.2，因此，理论模拟结果与实际荷电膜传质的实验数据相吻合。

A sulfonated poly aryl ether with sulfonic group on naphthalene ring of side chain and preparation thereof, which is capable to solve technical problems of complexity in synthesis, hardness in controlling sulphonation position and degree, high possibility of side reaction in sulphonation, complexity in sulphonation and hardness to realize indutrialzation.

一种磺酸基在侧链萘环上的磺化聚芳醚及其制备方法，解决现有技术中合成方法复杂，磺化位置和磺化度难以控制，磺化过程中容易发生多种副反应，磺化工艺复杂难以实现工业化等技术问题。

In order to increase the number of grafting points, multi-amido polymers aminoehylaminopropyl poly(dimethyl siloxane and polyacylamide were first introduced to surface of PCU film, then grafted with APEG, finally, an ring-opening reaction of propane sultone on the PCPU surface was performed. The single hydroxyl PEG with sulfoammonium

用化学分析能谱分析聚合物表面元素，结果表明，与直接在表面接枝聚乙二醇衍生物的方法相比，先引入多官能团聚合物的方法明显提高了接枝率。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。