聚合的
- 与 聚合的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Transmission Electron Microscope and other properties testing results show that the complex emulsifier system is the crucial influence factor of the polymerization process and the properties of products. It may influence the coagulum content and reaction rate of the polymerization process, the performance, particle diameter,viscosity, electrolyte stability and storage stability of the emulsion products and the contact angle of the film.The initiator mainly influences the coagulum content and reaction rate.The acrylic monomers mainly influence the solid content, Minimum Film Formation Temperature of the emulsion and the Glass Transition Temperature of the film.The organic silicone monomer mainly influences the water absorption of the film.The reaction temperature mainly influences the reaction rate and conversion.The stirring intensity mainly influences the coagulum content of the polymerization process.
透射电镜等性能测试结果显示:复合乳化剂体系是硅丙共聚乳液的聚合过程及产品性能的主要影响因素,它可以对聚合过程的凝胶率、反应速率以及乳液的外观、粒径、粘度、耐电解质稳定性及贮存稳定性,还有乳液涂膜的接触角等造成不同程度的影响;引发剂主要影响反应速率和凝胶率;丙烯酸酯单体主要影响到乳液的固含量、最低成膜温度以及涂膜的玻璃化转变温度,有机硅单体主要影响涂膜的吸水率等;聚合反应温度主要影响乳液的反应速率和转化率等;搅拌强度主要是影响到聚合过程的凝胶率。
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When the sodium lauryl sulfate and p-octyl polyethylene glycol phenyl ether is used and its level in 3% and 6: 4 ratio, the polymerization process has the lowest coagulum and the highest monomer conversion. Higher reaction temperature and more level hydroxyl value lead to more coagulum, the latter also lead to larger particle size. The acid value has larger influence on viscosity and coagulum, there exist a best range. The emulsion particle size is larger for its hydrophilicity, most of its particles are connected together.
在含较高亲水单体的乳液聚合体系中,难以制得稳定的预乳化液,不能采用工业生产中常用的预乳化工艺,而只能采用混合单体直接滴加的方法;由于单体混合物的亲水亲油值较高,用阴离子型乳化剂十二烷基硫酸钠和非离子型乳化剂聚乙二醇辛基苯基醚混合,用量为单体总量的3%,且比例在6:4时,乳液聚合时具有最低的凝聚物含量和最高的单体转化率;乳液聚合反应温度升高,可以提高单体转化率,增加反应速度,但凝聚率相应提高;随着羟基单体含量的增加,聚合过程中凝聚率增加,聚合物乳胶粒平均直径增加;羧基单体有一个最佳的用量(2.6%),过高或过低凝聚率均提高;羧基含量对乳液的粘度有较大的影响,当羧基含量较低时,羧基含量增加,乳液粘度增加明显;含羟基乳液粒子由于含亲水基团较多,使得乳胶粒径增大,乳胶粒子大多数互相凝聚在一起,处于凝聚态。
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In this paper,the aqueous solution polymerization of acrylamide by using copper chloride/ethylene diamide/α chloroethyl benzene as an initiator was studied. Molecular weigh has a correlation of a straight line with the time.
原子转移自由基聚合是一种自由基"活性"聚合,自发现[1 ] 以来已应用该技术合成了一系列结构不同、性能各异的聚合物材料[2~ 3] ,并发展了多种ATRP引发体系,是活性聚合发展史上最简便的一种技术。
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The conclusions were as follows: theνO-H andνC=O IR absorption maxima shifted towards higher wave numbers after imprinting 17β-estradiol on TFMAA-co-TRIM copolymer with the red shift of theνO-H groups being apparent after precipitation polymerization for 16h while that forνC=O groups being observed after polymerization for 24h. A strong interaction between TFMAA and 17β-estradiol was confirmed by the high selectivity for 17β-estradiol, as indicted by the values of the separation factor of isomers of 17β-estradiol/17α-estradiol (2.28) and the imprinted factor (3.01). Particle diameter of TFMAA-co-TRIM polymer was between 300 nm and 1.5μm, which suited well for solid phase sorbent throughout at low column pressure. The recognition of imprinting TFMAA-co-TRIM polymer for sterol molecules was driven by enthalpy eluted with acetronitile, and low temperature was in favor of the separation of sterol structure analogues on imprinting column. TFMAA-co-TRIM polymer possessed of determinate anti-heat stability, with melting point beginning at 255.84℃, Tp=257.40℃, control TFMAA-co-TRIM polymer and imprinting TFMAA-co-TRIM polymer were respectively decompounded at 267.79℃and 343.11℃, and solid micro-extraction noddle prepared by the special polymerization also showed definite recognition for 17β-estradiol by GC/MS detecting at 270℃. By selection of various washing and elution solvents, elution reagents of close polymerization system were of more advantage in template molecules retention and recognition on molecularly imprinted solid phase extraction column. At a certain extent, progesterone, 17α-estradiol, 17β-estradiol and 4-androstene-3, 17-dione could be intercepted on the MISPE column. Especially, MISPE had high selectivity for progesterone, and imprinting TFMAA-co-TRIM polymer could achieve adsorption balance within 50 min by absorption kinetics test for 17β-estradiol. However, MISPE column showed better selectivity and enrichment property for 17β-estradiol than C18 and CSPE columns according to the data from HPLC and GC/MS analyses. Recovery of 17β-estradiol on MISPE column was up to 85.5% while when prime extracting solution of milk powder was sampled, the recovery of CSPE and C18 columns were 43.7% and 30.7%, respectively.
通过研究阐明:紫外聚合产物TFMAA-co-TRIM中的νO-H振动吸收峰在聚合16h后红移,νC=O振动吸收峰在聚合24h后红移;TFMAA-co-TRIM对雌二醇异构体的印迹因子达到了3.01,α为2.28,优于其它功能单体参与得到的聚合物识别特性;TFMAA-co-TRIM聚合物粒径介于300 nm至1.5μm之间,作为色谱固定相具有良好的通量和低的柱压;在乙腈流动相中,TFMAA-co-TRIM分子印迹固定相的分离过程主要被焓驱动,低温有利于分子印迹固定相分离甾醇结构类似物;TFMAA-co-TRIM分子印迹聚合物在255.84℃时开始熔融,Tp=257.40℃,聚合物CP的降解温度在267.79℃,MIP降解温度在343.11℃,制备的固相微萃取头初步经GC/MS 270℃的耐热性测定;不同的洗提溶剂筛选证明了选择接近聚合溶剂的洗脱体系更有利于MISPE发挥识别效应;分子印迹固相萃取柱对孕酮、17α-雌二醇、17β-雌二醇和雄烯二酮都具有不同程度的保留特性,可作为此类化合物的吸附材料,特别对孕酮强保留的富集特性,可作为孕酮的选择性识别吸附剂,其分子印迹聚合物对17β-雌二醇的吸附动力学测定显示在50 min内基本达到吸附平衡,具有作为传感器核心敏感材料的潜力;对比萃取奶粉中17β-雌二醇性能,MISPE柱比非分子印迹固相萃取柱和C18柱具有更高的保留,回收率依次为85.5%,43.7%和30.7%。
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The results of these early research works showed that the localization of RNA polymerase I transcription was in the nucleoli and that of RNA polymerase II and Ⅲ in the nucleoplasm.
研究结果显示:RNA聚合酶Ⅰ的转录发生在核仁内,RNA聚合酶Ⅱ和RNA聚合酶Ⅲ的转录发生在核质中。
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And the mechanism of ATRP is discussed from the view of complex-catalytic reaction. It is deduced that the active center in ATRP is not pure radical but complex active center, which maybe a complex with radical and complex ion. The structure of active center may have a "bridge"structure formed through propaganating radical and transition metal ion, and the active center exists in a"cage"generated by ligand-transition metal ion-organic halide and monomer or solvent.
论文运用基团贡献理论对一些实验现象和结果进行了讨论和分析,并结合研究结果对络合催化引发原子转移自由基聚合反应的机理进行了初步的探讨,认为:过渡金属化合物与有机配体参与的络合催化引发原子转移自由基聚合反应中,聚合反应的活性中心不是纯粹的自由基活性中心,而是与过渡金属相结合的、有着某种"笼"结构存在的复合式活性中心,同时该活性中心以自由基特性为主,同时兼具某种程度的其它活性中心特征(如阳离子和络合聚合活性中心)。
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The conclusions are as follows:(1) Neologisms in each Huayu region can be classified into two major categories:self-originated and others-originated,among which the new-born words are "absolute new words" and the inherited word are "relative new words",and there are also others-originated elements in the morphemic and sense systems of new words;(2) Variation can be seen in the morpheme,formation,building and sense of new words in Huayu regions,besides individuals of new words;(3) Aggregation of current new words and compound words with one common morpheme and a same construction,together with the aggregation of synonyms and that of different senses in polysemies,reflect the relevance of the systems of new words in Huayu regions in their variation;(4) Regular participation of hinting sense of a formation element in forming and building new words is an important way of producing new sense of morpheme,and an important reason for the current emergence of words with more than one new senses;(5) Compared with ordinary words,the productivity of ways of word formation in forming new words both in general and of a particular class will change and new ways of word formation appear in Huayu regions;(6) The semantic collocation of the verbal morpheme of new verbs in a phrase has a great influence on the location of its structural center,and the complex syntactic behaviors of new verbs are related to the different processes of argument integration;(7) The processes of building new words with the same meaning differ in levels of approaches to motivation cognition,perspectives of motivation cognition,morpheme motivation and morpheme expression,etc.;(8) The lexical interaction in Huayu regions results in lexical subsystem intersections of current new words across two,three and four regions.
本文的主要结论是:(1)各华语区新词均可分为"自源新词"和"他源新词"两大类,其中的新生词和传承词分属"绝对新词"和"相对新词",新词语的词素、词义系统中也含有他源成分;(2)除词语个体外,华语区新词在词素、构词、造词、词义等方面均体现了某种程度的变异:(3)通用词语聚合、同素同构词聚合、同义异形词聚合与一词多义聚合集中反映了各华语区新词语系统在变异中的关联;(4)构词单位经常提示词义参与构造新词是产生新语素义的重要途径,也是当代多新义词现象的重要成因;(5)相对于一般词语,构词方式在新词语中的总能产性和在某一词类中所体现的能产性都有所变化,华语区也产生了新的构词方式;(6)新动词的动素在短语中的语义搭配对结构核心的位置有很大影响,新动词的复杂句法表现与不同的论元整合过程有关;(7)同义新词造词过程的差异包括理据认知途径、理据认知角度、词素理据和词素表达等不同层面;(8)华语区的词汇互动形成了双区、三区和四区通用新词等词汇子系统交集,作为华语核心,普通话所含纳的通用词语多于各区域变体。
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Electropolymerized pyrrole to polypyrrole was fabricated on gold electrodes and used as sensors. Cyclic voltammeter was applied to the characterization of the sensing material Ppy.
本文以电聚合方式,将吡咯聚合成的感测材料聚吡咯(polypyrrole, Ppy)薄膜镀制於金电极上,聚合完成的Ppy薄膜再经过循环伏安仪来作定性分析。
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The conclusions are as follows:(1) Neologisms in each Huayu region can be classified into two major categories:self-originated and others-originated,among which the new-born words are "absolute new words" and the inherited word are "relative new words",and there are also others-originated elements in the morphemic and sense systems of new words;(2) Variation can be seen in the morpheme,formation,building and sense of new words in Huayu regions,besides individuals of new words;(3) Aggregation of current new words and compound words with one common morpheme and a same construction,together with the aggregation of synonyms and that of different senses in polysemies,reflect the relevance of the systems of new words in Huayu regions in their variation;(4) Regular participation of hinting sense of a formation element in forming and building new words is an important way of producing new sense of morpheme,and an important reason for the current emergence of words with more than one new senses;(5) Compared with ordinary words,the productivity of ways of word formation in forming new words both in general and of a particular class will change and new ways of word formation appear in Huayu regions;(6) The semantic collocation of the verbal morpheme of new verbs in a phrase has a great influence on the location of its structural center,and the complex syntactic behaviors of new verbs are related to the different processes of argument integration;(7) The processes of building new words with the same meaning differ in levels of approaches to motivation cognition,perspectives of motivation cognition,morpheme motivation and morpheme expression,etc.;(8) The lexical interaction in Huayu regions results in lexical subsystem intersections of current new words across two,three and four regions.
本文的主要结论是:(1)各华语区新词均可分为&自源新词&和&他源新词&两大类,其中的新生词和传承词分属&绝对新词&和&相对新词&,新词语的词素、词义系统中也含有他源成分;(2)除词语个体外,华语区新词在词素、构词、造词、词义等方面均体现了某种程度的变异:(3)通用词语聚合、同素同构词聚合、同义异形词聚合与一词多义聚合集中反映了各华语区新词语系统在变异中的关联;(4)构词单位经常提示词义参与构造新词是产生新语素义的重要途径,也是当代多新义词现象的重要成因;(5)相对于一般词语,构词方式在新词语中的总能产性和在某一词类中所体现的能产性都有所变化,华语区也产生了新的构词方式;(6)新动词的动素在短语中的语义搭配对结构核心的位置有很大影响,新动词的复杂句法表现与不同的论元整合过程有关;(7)同义新词造词过程的差异包括理据认知途径、理据认知角度、词素理据和词素表达等不同层面;(8)华语区的词汇互动形成了双区、三区和四区通用新词等词汇子系统交集,作为华语核心,普通话所含纳的通用词语多于各区域变体。
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The pilot-trial technological recipe and process character of SB polymerization was emphatically analyzed. On the base of the considering of the industrialization of normal SB later product, the constant unit volume power was mainly selected as a rule to scale up the polymerization reactor during the industrialization of SB latex as cement additive.
着重分析了水泥专用丁苯胶乳的中试工艺配方和流程特点,在结合常规丁苯聚合工业放大规律的基础上,提出了采用以相同单位体积功为主的放大准则对水泥专用丁苯胶乳的聚合过程进行了工程放大试验,着重考察了搅拌转速、搅拌桨形式和内冷构件等因素对聚合过程稳定性和成品胶乳性能的影响,并分析讨论了20m3工业聚合釜的传热可行性问题。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。