烯丙基的
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As a precursive work of polymerization directly from vesicles, a polymerizable surfactant, allyl dodecyl dimethylammonium bromide was synthesized, and spontaneous stable vesicles were formed from aqueous solutions of ADDB and sodium dodecyl sulfonate in equimolar composition.
作为可聚合囊泡制备的前期基础工作,研究了一种可聚合的囊泡体系:1-丙烯基-2,2,二甲基-十二烷基溴化胺和ADDB与十二烷基磺酸钠的等摩尔比混合体系。
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The sample was isolated by sephadex G-25 gel filtration column after concentration. Then bioactivity was assayed by Candida albicans. The chemical components were isolated and identified by GC-MS. GC determined the relative percentage content of the extract, nine kinds of components were separated, identified and accounted for about 82.12%, the major compound was propenyl methyl disulfide.
浓缩后的样品通过Sephadex G-25凝胶柱分离提纯其中的有效成分,以白色念球菌进行生物活性测定,并用气相色谱-质谱法对其化学成分进行分离鉴定,GC法测定各种化合物的相对百分含量,共鉴定了9种成分,约占总提取物的82.12%,其中,主要物质是甲基丙烯基二硫化物。
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The results show that it only takes 8 min for the reaction, when the initiator is potassium persulfate/sodium thiosulfate which forms an oxidation-reduction initiator system; N,N-methylene diacrylamide is as cross-linker; neutralization degree is 70%, under the microwave power of 360 W.
结果表明,在360W的微波辐射功率下,采用过硫酸钾与硫代硫酸钠的氧化还原引发体系,N,N-亚甲基双丙烯酰胺为交联剂,接枝单体的中和度为70%时,只需8min就可以完成纤维素基高吸水树脂的接枝共聚合成。
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Rotary viscosimeter is employed to reflect the effect of the composition, shear, temperature and salt concentration on viscosity of the modified polyacrylamide was studied in different synthesis approaches.
为了增强聚丙烯酰胺的增粘性能,提高其抗剪切、抗温和抗盐性,使用实验室自制的疏水单体、丙烯酰胺和离子型单体,通过3种不同的聚合方法进行自由基共聚合。
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In this thesis, monomer with unsaturated double bond was firstly synthesized byreacting acryloyl chloride with bifunctional monomer. Such synthesized monomer ormonomer with initial unsaturated double bond was used to prepare linear polymericmaterials by free radical polymerization. A series of new degradable space polymerswith acylamino bond were subsequently synthesized using diisocyanate as thecross-linker.
本文首先通过丙烯酰氯和双官能团单体反应引入不饱和双键,或者直接使用具有不饱和双键的单体,通过自由基聚合得到含有活泼羟基或氨基的线型高分子聚合物,再用二异氰酸酯作为交联剂交联,从而合成了一系列基于酰胺键的新型可降解高分子体型聚合物。
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During the low temperature plasma polymerization, different factors (reaction power, pulse duty factor, reaction time, bias voltage and pressure) were investigated to get the best film. The results of X-ray photoelectron spectroscopy and Fourier transformed infrared spectoscopy implied that polymer nano-film containing carboxyl or amido were deposited successfully by using allylamine or acrylic acid as a reagent, respectively.
低温等离子聚合过程中,研究了反应的功率、脉冲占空比、反应时间、偏压、反应室压强这五个因素对薄膜性质的影响,确定了最佳的工艺参数。X光电子能谱和傅立叶转换红外光谱分析结果表明,以丙烯胺和丙烯酸为反应物可以在样品表面分别得到含有羧基或氨基的有机薄膜。
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Then bis chloroformate was reacted with aromatic amines under the appropriate solvent and appropriate catalyst, after removed the solvent to obtain one kind of new amine-terminated polyether.
以聚氧化丙烯为基础原料,与光气在合适的溶剂下经过传统的低温、高温两段法光气化反应合成氯甲酸二酯,然后再与芳香多胺在合适的溶剂和催化剂下反应,脱除溶剂后得到一种新型的端胺基聚醚。
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As a foundation raw material, propylene oxide was reacted with phosgene use the process tradition method that mean low temperature and high temperature two phosgenation sections to synthesis bis chloroformate .
以聚氧化丙烯为基础原料,与光气在合适的溶剂下经过传统的低温、高温两段法光气化反应合成氯甲酸二酯,然后再与芳香多胺在合适的溶剂和催化剂下反应,脱除溶剂后得到一种新型的端胺基聚醚。
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The leftover from bamboo processing was comminuted into bamboo fine powder, which was surface-treaded with a coupling agent of ethenyl tri (β-methoxyethoxy) silane; and then in the presence of initiator dicumyl peroxide, the powder was compounded with styrene-isoprene block copolymer/bromobutyl rubber blend to prepare a crosslinked vibration-absorbing rubber composite material.
将竹加工的边角料粉碎并用乙烯基三硅烷偶联剂处理,再与苯乙烯-异戊二烯嵌段共聚物和溴化丁基橡胶的共混物进行复合,在过氧化二异丙苯引发剂的作用下制得交联型橡胶吸振复合材料。
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Compared with the present process for the synthesis of acrylate by esterification of acrylic acid, which comes by oxygenation of propylene, the process by the carbonylation of acetylene to acrylic acid and its esters pays less cost, and so, is worth to be studied.
相对于目前主张的丙烯氧化法生产丙烯酸,再酯化生产丙烯酸酯的主流工艺,乙炔羰基化法合成丙烯酸及酯的工艺具有很好的经济性应用价值。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。