- 更多网络例句与单体相关的网络例句 [注:此内容来源于网络,仅供参考]
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In order to research the relations of carbon sources to structure of PHAs, six kinds of PHAs sample were synthesized by activated sludge with six different carbon sources respectively in the aerobic-anaerobic-anoxic process. Their structures were determined by 〓HNMR、〓CNMR and GC-MS. When the carbon source was acetate, the unit composition of PHAs was 93. 91mol% 3-hydroxybutanoic acid and 6. 09mol% 3-hydroxypentanoic acid ; When the carbon source was propionate, the unit composition of PHAs was 28. 66mol% HB, 63. 13mol%HV, 2. 55mol% 2-methy-3-hydroxy-butanoic acid (2MHB) and 5. 66mol% 2-methyl-3-hydroxypentanoic acid (2MHV); When the carbon source was 80% butyrate and 20% 1, 4-butanediol, the unit composition of PHAs was 65. 03mol% HB, 28. 06mol%HV, 1. 91mol%2MHB, 2. 69mol% 2MHV, 0.73mol% 4-hydroxy butanoic acid (4HB), 0.78mol% 4-methyl-3-hydroxy-pentanoic acid (4MHV), 0.80mol% 3-hydroxyhexanoic acid ; When the carbon source was 20% butyrate and 80% 1, 4-butanediol, the unit composition of PHAs was 61. 39mol% HB, 23. 01mol%HV, 4. 58mol%2MHB, 5. 97mol% 2MHV, 0.91mol% 4HB, 2. 37mol% 4MHV, 1. 77mol% HHx; When the carbon source was 60% pentanoate and 40%glucose, the unit composition of PHAs was 41. 24mol% HB, 58. 76mol%HV; When the carbon source was 60% benzoate and 40% glucose, the unit composition of PHAs was 65. 48mol% HB and 34. 52mol% HV.
为了研究不同碳源与产物PHAs结构的关系,采用好氧-厌氧-缺氧模式利用6种不同碳源培养活性污泥得到6种不同的PHAs样品,通过〓HNMR、〓CNMR和GC-MS谱图确定了这6种PHAs的单体成分和比例:以乙酸钠培养活性污泥得到的PHAs的单体组成是93.91mol%3-羟基丁酸和6.09mol%3-羟基戊酸;以丙酸钠培养活性污泥得到的PHAs的单体组成除28.66mol%HB、63.13mol%HV外,另外还有2.55mol%3-羟基2-甲基丁酸(2MHB)和5.66mol%3-羟基2-甲基戊酸(2MHV);以80%丁酸钠和20%1,4-丁二醇混合溶液培养活性污泥得到的PHAs含有七种单体组成:65.03mol%HB,28.06mol%HV,1.91mol%2MHB,2.69mol%2MHV,0.73mol%4-HB(4-羟基丁酸),0.78mol%4MHV(3-羟基-4-甲基戊酸),0.80%HHx(3-羟基己酸);以20%丁酸钠和80%1,4-丁二醇培养活性污泥所得到的PHAs含有与3#样品相同的七种单体,只是比例不同,分别是61.39mol%,23.01mol%,4.58mol%,5.97mol%,0.91mol%,2.37mol%,1.77mol%;以60%戊酸钠和40%葡萄糖培养活性污泥所得到的PHAs由HB和HV组成,比例是41.24 mol%∶58.76 mol%;以60%苯甲酸钠和40%葡萄糖培养活性污泥所得到的PHAs也由HB和HV组成,比例是65.48 mol%∶34.52 mol%。
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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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The effects of different factors on the laser-induced graft polymerization on the PET surface were analyzed, and the mechanisms were discussed. The factors were: 1 Monomers with smaller molecules resulted in better modification than polymeric monomers. Acrylamide monomer was chosen as hydrophilic modifier finally; 2 Higher concentration of the monomer solution favored the graft reaction; 3 With the increasing laser fluence, the surface hydrophilicity of PET films increased at first, then decreased. More laser pulses led to a more hydrophilic surface; 4 Benzophenone as a photosensitizer hindered the graft polymerization; 5 The homopolymer retardant of ammonium iron sulfate hexahydrate in a proper concentration retarded the formation of homopolymers and promotes the graft copolymerization; 6 The solvent of monomer solution also affected the graft reaction. Different solvents functioned in different ways. Ethanol can promote the graft reaction because of the activity of hydrogen in its structure; 7 pH value of the monomer solution affects the polymerization rate, and a lower pH value was favorable to the graft reaction.
这些影响因素的作用分别为:1小分子单体的表面改性效果好,确定以丙烯酰胺为亲水性改性单体;2较高的单体溶液浓度有利于接枝反应;3激光能量密度增大,薄膜表面亲水性先显著增强,后又减弱;激光脉冲次数越多,改性后表面亲水性越强;4光敏剂BP对PET表面接枝聚合反应有阻碍作用;5适当浓度的均聚物抑制剂六水合硫酸铁铵能减少单体均聚物的生成,促进接枝聚合;6单体溶液的溶剂也影响接枝聚合的反应进程,不同溶剂的影响作用原理不同,含较活泼氢的乙醇能促进接枝反应;7溶液pH值影响单体聚合速率,pH值较低有利于接枝反应。
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The main contribution of this paper is summarized as follow:1 Copolymer acrylate resin including hydroxyl, carboxylic and amina(-NH_2) is a new type of antifogging system and ahydrophi- lic antifogging constituents which is not found before.2 Water-soluble acrylate resin hydrophilic antifogging coating material is a new-type environmental protection material which takes ethanol as solvent and whose pastiness is adjusted by deionized water.3 The quality rate of accessory soft monomer ethyl acrylate and accessory hard monomer butyl methacrylate is 6 to 4, the quality rate of functional monomers in all monomers is 20 percent, the quality rate of MAA in the functional monomers is 22 percent, the quality rate of β-hydroxyl ethyl acrylate in the functional monomers is 8 to 10 percent and the remainder of functional monomer is acrylic acid.4 Cross-linking agent methylol acrylamide belongs to self-cross-linking system.
本文的主要贡献概述如下: 1 含有亲水羧基、羟基和氨基(-NH_2)丙烯酸共聚树脂是一种新型高效的防雾体系,用的亲水防雾组分是前所未有的。 2 以乙醇为溶剂制得水溶性丙烯酸树脂具有很好的水溶性能和防雾性能,只需加入去离子水就可以调节它的粘度,是一种新型的环保型防雾材料。 3 辅助软单体丙烯酸乙酯和辅助硬单体甲基丙烯酸甲酯最佳配比为质量比6∶4;官能单体占单体总量的20%,甲基丙烯酸占官能单体总量10~15%,甲基丙烯酸β-羟乙酯占官能单体总量的8~10%,剩下的为丙烯酸。
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When the concentration of MAH is higher than that of St, some MAH monomer reacts with St to form SMA, others can directly grafts onto PP macroradicals. When the amount of St added is higher than that of MAH, part of St monomer may preferentially react with PP macroradicals to form more stable styryl macroradicals, while others copolymerize with MAH, yielding SMA. MFR of the grafted PP is lower in this case. It is considered that MFR of the grafted PP is decided by concentration of free monomers, or, number of grafting reactive species. FTIR analysis confirmed the above mechanism.
当MAH单体用量多于St单体时,一部分MAH单体与St反应生成SMA,另一部分可直接与PP大分子自由基进行接枝反应;当St单体用量多于MAH单体时,除与MAH反应生成SMA之外的St单体可先与PP大分子自由基反应,并起到稳定PP自由基的作用,这时接枝物的MFR较小,亦即接枝物的MFR与体系中可进行接枝反应的活性种数目有关。
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In this Ph. D. dissertation, reverse microemulsion method was fully used infabricating and modifying polyacrylamide with functional and high-relative moleculeweight. The copolymerization of 2-acrylamide-2-methylpxopanesulfonic acid, fluorescent monomer 4-methoxy-N-(2-N\', N\'-dimethylamino ethyl)naphthalimide alkyl chloride quaternary ammonium salt, fluorescentmonomer 4-(N\'-methyl-1-piperazinylallyl)-N-butyl-naphthalimide chloride quaternaryammonium salt, Cationic monomer dimethylethylammonium bromide and hydrophobical monomer octadecylacrylate with acrylamide and properties of the copolymers werestudied. The interaction between five polymers and Al_2O_3(012) crystal surface have beensimulated by Materials Studio 3.0 program package, binding energies and non-bondinteraction energies and deformation energies have also been acquired.
本文以制备具有较高相对分子质量和功能型PAM为研究目的,将反相微乳液法运用到其制备及改性的有关环节,通过反相微乳液聚合工艺,将几种改性功能单体2-丙烯酰胺基-2-甲基-丙磺酸、荧光单体2-(4-甲氧基-1,8-萘二甲酰亚胺基)-乙基二甲基烯丙基氯化铵、荧光单体4-(N'-甲基-1-哌嗪基)-N-丁基-1,8-萘烯丙氯季铵盐、阳离子单体丙烯酰氧乙基-二甲基-乙基溴化铵和疏水单体丙烯酸十八酯与AM共聚,制备AMPS改性PAM、荧光示踪型PAM、阳离子单体DMB改性PAM和OA改性PAM等四类不同功能单体改性PAM,并研究其应用性能。
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Orientale additional and substitutional lines. chromosome number of 96 BC2 F3 individuals were accounted. Fifteen plants with 2n= 43 and eight plants with 2n= 44 were checked out. GISH results of the individuals with 43 chromosomes showed that they blonged to three different monosomic additions. Two disomic additions, ine double-monosomic addition, one trible- monosomic addition and one monosomic addition were found in the 2n = 44 individuals. One double-monosomic substitution and one monosomic sustitution were obtained.
为了筛选小麦-旱麦草异附加系、异代换系,对普通小麦品种Fukuho×东方旱麦草属间杂种的BC2F3代材料的96粒种子进行了染色体数目的检测,共检出15粒2n=43的种子,8粒2n=44的种子,进一步对以上材料进行的基因组DNA原位杂交,共鉴定出3个单体附加系,2个二体附加系,1个双单体附加,1个小麦三体单体附加,1个附加3条东方旱麦草染色体的小麦单体,在染色体数为42的个体中,检测出1个单体代换,1个双单体代换。
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On curing, the -NCH〓OH groups of PNMA film would condense with each other to form a network of PNMA in which the PA molecular long chains were be"tightened"in bundles, or be confined in the meshes of the networks. 2. During the developing process of the low-temperature curable, non-formaldehyde PA latices, the monomers were chosen based on the organic/inorganic ratios, and the co-polymerization reactivity ratios. The effects of crosslinking monomer A and B were also compared.
从物质的有机性/无机性值,以及多元单体发生共聚的条件出发,通过比较交联单体A与B的性能,发现采用交联单体A的胶乳的性能良好,确定了一个由软、硬及交联单体A等多种单体组成的混合体系在阴/非离子组成的复合乳化体系中进行乳液聚合制备所要求的低温无甲醛PA胶乳的配方。
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The present invention discloses a polycarboxylic acid copolymer which is obtained by copolymerization of monomer components comprising a polyalkyleneimine unsaturated monomer (A2) and an unsaturated carboxylic acid monomer, the polyalkylene glycol unsaturated monomer (A2) having an oxyalkylene group bonded to a polyhydric alcohol residue, and the monomer component containing an unsaturated monocarboxylic acid monomer.
公开了一种多元羧酸共聚物,它是通过单体组分共聚制得的,所述单体组分包括聚二醇不饱和单体(A2)和不饱和一元羧酸单体,所述聚二醇不饱和单体(A2)具有使氧化烯基结合到多元醇残基上的结构,所述多元醇残基平均每个分子具有不少于3个羟基。
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Based on constant altitude plan data like reflectivity factor, collected by a new weather radar interpolated with 3D-Barnes scheme, in this paper the vertically integrated liquid water content and vertically integrated liquid water content density of hailstone cells are calculated with the theoretical model, ration of VIL and upright height of hailstone cells, and the maximums of VIL and VILD are identified using MAX function.
以3D-Barnes方案插值的新一代天气雷达反射率因子等高平面资料,用垂直累积液态含水量(vertically in-tegrated liquid water content,简称VIL)的理论模式计算单体的VIL,用VIL与单体顶高度之比计算单体的垂直累积液态含水量密度(vertically integrated liquid water content density,简称VILD),利用MAX函数逐个提取雹云单体在降雹过程中的最大VIL和VILD(分别简称VILmax和VILDmax),采用统计和回归处理技术,利用2004-2006年的5~8月甘肃中部54例局地冰雹单体个例,对单体VILmax和VILDmax与地面最大降雹区的位置、地面最大冰雹直径之间的相关性以及对Rmax的识别效果等进行了对比分析。
- 更多网络解释与单体相关的网络解释 [注:此内容来源于网络,仅供参考]
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Grasp of the All-Father:上帝之手 (单体目标不能移动)
Divine Sanction 牧师的制裁 (单体目标攻击速度减慢) | Grasp of the All-Father 上帝之手 (单体目标不能移动) | Calming Touch ??(单体目标健忘??)
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chromatid bridge:染色单体桥
chromatid break|染色单体断裂 | chromatid bridge|染色单体桥 | chromatid exchange|染色单体交换
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diene monomer:双烯单体,二烯单体
1,2-二取代乙烯单体 vinylene monomer | 双烯单体,二烯单体 diene monomer | 极性单体 polar monomer
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monomer:单体
的"单体"(monomer)一词来源于. 的方式分为两类:加成聚合单体和缩合聚合单体. 或环状结构的单体分子可以进行加成聚合反应(加聚). (环状结构),生成聚环氧乙烷. 的单体分子之间可以进行缩合聚合反应(缩聚). 单体在聚合反应中生成新键的数目被称为官能度,
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monosome:单体,单体(染色体)生物
monosaccharide 单糖 | monosome 单体,单体(染色体)生物 | monosomic 单体,单体(染色体)生物
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vinylidene monomer:亚乙烯基单体,偏[二]取代乙烯单体
6 乙烯基单体 vinyl monomer | 7 1,1-亚乙烯基单体,偏[二]取代乙烯单体 vinylidene monomer | 9 双烯单体,二烯单体 diene monomer
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monomeric substance:单体物质;单体
monomer reactivity ratio 单体反应性比 | monomeric substance 单体物质;单体 | monomolecular film 单分子薄膜
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monosomic:单体,单体(染色体)生物
monosome 单体,单体(染色体)生物 | monosomic 单体,单体(染色体)生物 | monosomy 单体性
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monosomic:单体(染色体)的;单体(染色体)生物
单体(染色体) monosome | 单体(染色体)的;单体(染色体)生物 monosomic | 单体(染色体)性 monosomy
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vinylene monomer:二取代乙烯单体
1,2-二取代乙烯单体 vinylene monomer | 双烯单体,二烯单体 diene monomer | 极性单体 polar monomer