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It was found that ARA was composed of esterification products of (2-HEA)-ester with pimaric acid, dehydroabietic acid, abietic acid and two isomers of acrylpimaric acid. ARA is a good crosslinking agent which can copolymerize with most vinyl monomers. The properties of solvent-resistance and heat resistance of the copolymer were improved considerably by the use of ARA.

实验结果表明:ARA主要由海松酸、脱氢枞酸、枞酸和丙烯海松酸的二种异构体的丙烯酸-2-羟基乙基酯的酯化产物组成,ARA是一种良好的交联剂,可与大多数乙烯基单体共聚合,其与MMA的共聚物的耐溶剂性和耐热性均得到了较大幅度的提高。

0G/100g glycerol, which mostly affected the titration of commercial glycerol with 0.1mol/L NaOH, and it was the most important that shew the commercial glycerol acidific.

乙酸甘油酯的产生机制主要是发酵液中的代谢产物乙酸和丙三醇在蒸馏过程进行化学反应而生成的,并进行了验证。

Conclution: Diester aconitum alkaloid can be changed to monoester aconitum and aconine alkaloids. Under the controled condition benzoylaconine is a major hydrolysis products.

双酯型的乌头碱可水解转化为单酯型乌头碱和乌头原碱;在控制条件下,苯甲酰乌头原碱为主要水解产物。

The result shows at the mild condition chain olefin that nCl7, polyethylene can be cracked into solutions of ethane, propane, butane, benzene and toluene and other small molecular compounds, polyethylene reacted fluids are mainly composed of a-olefin at the range 12 to 38, by which α-ωdiene, saturated hydrocarbon and aromatic hydrocarbon, anthracene, phenanthrene of albocarbon series are contained.

结果表明,在温和条件下可以将链状烷烃如正十七烷烃、聚乙烯通过微波及炭催化剂的作用,裂解成乙烯、丙烷、丁烷、苯、甲苯等溶剂及小分子化合物。聚乙烯反应液体产物以碳数在12~38范围的α-烯烃为主,也产生α-ω二烯、饱和烃及芳烃,芳烃主要有萘系列、葱、菲等。

Alcaligenes eutrophus WSH3 was selected as the strain for the production of polyβ-hydroxybutyrate and copolymer of 3-hydroxybutyrate and 3hydroxyvalerate . This study is aimed at finding an operative way leading to high PHB and PHBV productivity, high yield coefficient and high content of PHB and PHBV. The main research results are as follows

本文以真养产碱杆菌(A.eutrophus)WSH3为聚-β-羟基丁酸和3-羟基丁酸与3-羟基戊酸的共聚物的生产菌株,以实现PHB和PHBV发酵过程的高的生产强度、高的产物对基质的产率系数和高的聚合物含量为目标,进行了PHB及PHBV发酵条件的研究,主要研究内容和结果如下

At present, MP and PNP degrading bacteria reported are mostly Pseudomonas sp., Flavobacterium, Alcaligenes sp. and so on. Furthermore, those strains can only degrade MP and PNP partially.

目前发现的MP和PNP降解菌主要有假单胞菌、黄杆菌、产碱菌等,而且大多只能部分降解MP和PNP,国内外尚未发现节杆菌对MP及其降解中间产物PNP的降解。

In all cases, only the biboronic products with one boryl group adding to the middle carbon and the other to the nonsubstituted terminal carbon of the allene moiety were observed.

两个硼酯基都接於丙二烯基没有取代的末端双键上。立体选择性很高,主要的产物都是Z form的形式。

The mineral falls into the anorthic system and can be divided into two sorts of colors with different X-ray Powder diffraction Patterns.

矿物成因研究表明,三斜锰辉石主要为岩浆岩与含锰白云岩接触交代作用的产物,具明显的成因指示意义。

However, post-modernism asserted that this was the primary mode of human existence, an individual aswim in a sea of the products of people.

然而,后现代主义的观点是,人存在的主要形式是,个体涵盖在所有人的产物之中。

In this paper, a further study has been carried out on the hollow nickel spheres synthesized by autocatalytic reduction to find that the size distribution of the nickel spheres largely depended on the original colloidal particles and reaction incubation period.

对自催化还原法制备空心镍球的形成过程进行了较深入的研究,认为反应产物的粒径和粒度分布主要取决于原始胶核的形态以及反应孕育期的长短。

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