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接枝量
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  grafted amount
     The grafted amount of the surface grafted film is about 1 mg/cm2, thus, the average adhesive strength is found to be above 100 kg/cm2. The electrical properties of the surface grafted film are the same as those in nongraft film.
     表面接枝膜的接枝量约1毫克/厘米~2,平均粘结强度高达100公斤/厘米~2以上。
短句来源
  grafting extent
     Based on the measurement of solution transmittance,it was found that the graft copolymers could have a temperaturesensitive property and their lower critical solution temperature was affected by their grafting extent and concentration.
     通过溶液透光率的测定,发现该类接枝共聚物具有温度敏感特性,且其最低临界溶液温度受接枝量及产物浓度的影响。
短句来源
  “接枝量”译为未确定词的双语例句
     1 g HY zeolite reacting with excessive tetraalkyltin could make 1.71, 1.40, 1.12, 0.85mmol tin grafted on the surface.
     每克HY沸石分子筛与过量烷基锡完全反应时,锡在表面的接枝量分别为1.71、1.40、1.12、0.85 mmol,在表面生成组成为(≡Si-O)SnR_3的表面单接枝物种。
短句来源
     It was shown that AA grafting yield onto PTFE film surface was 131.7 μg/cm~2,after 100 W and 100 s of plasma treatment under 20 Pa,and 50 h of graft polymerization at 70℃ with 26% of AA volume fraction.
     研究结果表明:在放电压力20 Pa、放电功率100 W、放电时间100 s的等离子体处理条件和接枝温度70℃、接枝时间50 h、单体体积分数26%的接枝条件下,PTFE膜表面丙烯酸接枝量为131.7μg/cm2;
短句来源
     In the preparation of composite film of PP-g-PAA/PANI, PANI was firmly tethered on the PP-g-PAA/PDA films surface by reacted with PDA When the graft percentage of PANI was 1.5 wt%, the average thickness of grafted PANI on the composite film was about 0.4 μm, and the diameter of the formed PANI particles was about 150 nm.
     经PDA与苯胺的聚合反应,PP-g-PAA膜通过PDA以共价键与PANI链连接,牢固地将PANI固定在膜表面从而形成PP-g-PAA/PANI复合膜。 当PANI接枝量为1.5 wt%时,PANI层的平均厚度为0.4μm,膜上PANI粒子的直径大约150nm。
短句来源
     The results show that r -Al2O3 can combine with r -GOPS through the hydroxyl of r-Al2O3 surface and r-GOPS was dispersed over the surface of r-Al2O3. The linkage reaction can proceed according to chemometric. The mass of r -GOPS was rigorous controlled by calculation and weighting.
     证明了γ-GOPS可以与γ-Al_2O-3载体上的羟基发生键合作用,分散在γ-Al_2O_3上表面,且键合反应能按化学计量进行,通过计算和称量能严格控制γ-GOPS的接枝量
短句来源
     BSA was covalently linked on carboxylated surfaces by EDC and the BSA content on the surfaces was measured by substration of FT-ATR-IR spectra.
     用EDC接枝牛血清白蛋白并用FT ATR IR谱的差减测定表面BSA接枝量 ;
短句来源
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  相似匹配句对
     On Quantity
     论
短句来源
     water resources quantity;
     水资源;
短句来源
     THE GRAFTING OF SILK
     蚕丝的接枝
短句来源
     The highest grafting occurred with silk(35%) followed by rayon(22%) and the least grafting was with cotton yarn(17%).
     其次是人造丝22%; 接枝最低的是棉纱,仅为17%。
短句来源
     EFFECT OF THE RUBBER CONTENT OF PB-g-SAN GRAFTING COPOLYMER ON THE PROPERTY OF ABS RESIN
     PB-g-SAN接枝粉料的含胶对ABS性能的影响
短句来源
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  grafted amount
The transport fractions had the maximum values around the grafted amount of 5.0 mmol/g at which the ungrafted layers in the inside of DMA-grafted PE (PE-g-PDMA) films disappeared.
      
FT-IR and TGA measurements suggested that a 'cross-linking' reaction occurred in amidation process and generated structural defects, which decreased the grafted amount of dendrimer on silica gel.
      
  grafting extent
Moreover, the lower critical solution temperature (LCST) of the graft copolymer in aqueous solution was dependent on its grafting extent and concentration.
      
The LCST value was found to increase with the increase of the grafting extent and decrease with the increase of the copolymer concentration.
      
The grafting extent is significantly increased due to more availability of monomer for grafting.
      


The graft copolymerization of monomer-olefins on polypropylene film by a pre-irradiation of gamma-ray under atmosphere has been studied. Both radicals and peroxides, which were produced during the irradiation in air, can initiate graft copolymerization.When the irradiated polymer is stored for a long period under atmosphere at 100℃ before grafting, the trapped radicals will decay gradually; although the grafting may be still induced by the peroxides, the degree of grafting is apparently decreased.The activation...

The graft copolymerization of monomer-olefins on polypropylene film by a pre-irradiation of gamma-ray under atmosphere has been studied. Both radicals and peroxides, which were produced during the irradiation in air, can initiate graft copolymerization.When the irradiated polymer is stored for a long period under atmosphere at 100℃ before grafting, the trapped radicals will decay gradually; although the grafting may be still induced by the peroxides, the degree of grafting is apparently decreased.The activation energy of the grafting initiated by the peroxide was calculated as 10.9-18.3 kcal/mol.Such grafted film may be dyed with direct or acid dyes in aqueous bath when the degree of graft is about 20% by weight.It has been shown that the mechanical properties of the copolymer depend on its supramoleculer structures.

1.聚丙烯与乙酸乙烯酯、甲基丙烯酸甲酯、丙 烯腈接枝后,提高了染色能力,其中以接乙酸乙烯酯为最好。 2.研究了不同接枝量接枝共聚物的结晶过程,以球晶结构变化解释了接枝共聚物断裂强度的下降。 3.研究了接枝反应与预照射条件,计算了四种单体的接枝反应活化能。指出选择乙酸乙烯酯的浓度在50~60%不仅可以避免大量的均聚物,且接枝量能达到聚丙烯改性要求。

The effect of some factors on the graft copolymerization of styrene to polyvinyl alcohol induced by γ-irradiation has been studied, and a preliminary estimation was made on the properties of the graft products. The grafting occured very readily if a proper amount of water was added to the system. It was shown that the rate of grafting increased sharply with the increase of water content in the polymer film and then levelled off, while the rate of homopolymerization increased more slowly and levelled off rapidly...

The effect of some factors on the graft copolymerization of styrene to polyvinyl alcohol induced by γ-irradiation has been studied, and a preliminary estimation was made on the properties of the graft products. The grafting occured very readily if a proper amount of water was added to the system. It was shown that the rate of grafting increased sharply with the increase of water content in the polymer film and then levelled off, while the rate of homopolymerization increased more slowly and levelled off rapidly at a lower water content. The effect of dose rate on the grafting process at room temperature was studied, and it was found that the grafting was entirely diffusion-controlled with the dose rate larger than 100 r/min, at which the dose rate exponent of the relation V=KIn approached zero. The plot of the amount of grafting with temperature in the range of 10-80℃ passed through a maximum at 60℃ and then fell off, while the homo-polymerization increased steadily all over the temperature range and showed an auto-acceleration at temperatures above 60℃ presumably owing to the gel effect. The presence of oxygen has an inhibiting effect on the grafting. It was found that the homopolymerization could be remarkably inhibited, with only slight reduction in the grafting, by the presence of a proper amount of oxygen or air.The graft product is soluble in dimethylformamide at 150℃. The swelling ratio of the product in boiling water or in boiling benzene was found to change linearly with the grafting. It was also found that the resistance of the film to acid or alkali was significantly improved by the grafting.

本文研究了若干因素对聚乙烯醇与苯乙烯辐射接枝共聚反应的影响,并对接枝产品的性能作了初步鉴定。 在体系里加入适量的水,接枝即甚易发生,此后接枝率先随着聚合物膜片的水含量而急剧增加,然后趋于平坦,而均聚反应速度增加较慢,且在较低的水含量时就不再上升。研究了剂率对接枝过程的影响,发现在常温当所用剂率大于100伦/分时,接枝反应完全受单体扩散控制,此时,接枝速率与剂率的依赖关系式V=KI~n中的n值趋近于零。 在10~80℃范围内,接枝与温度关系的曲线在60℃通过一极大值,然后下降。但均聚反应在整个温度范围内一直随温度而不断地增加,并在温度高于60℃时出现自动加速现象,这大概是凝胶效应的缘故。氧的存在对接枝反应起抑制作用。发现适量氧或空气 的存在可以使均聚反应受到显著抑制,而接枝反应仅略为减慢。接枝产品在沸水或沸苯中的溶胀比与接枝量成线性关系,膜片的抗酸碱性能因接枝而有明显改善。

By the direct radiation grafting techonique, kinetics of the Gamma-induced graft copolymerization of st-AA to polytetrafluoroethyene has been studied at 20°-40℃. Dependence of the grafting temperature on the critical radiation intensity has been found. Above a given critical radiation intensity, the grafting is limited to the surface. Below that intensity, the grafting proceeds in the mass. Optical microscope and scanning electron microscope were used to study the structure of the cross section and surface of...

By the direct radiation grafting techonique, kinetics of the Gamma-induced graft copolymerization of st-AA to polytetrafluoroethyene has been studied at 20°-40℃. Dependence of the grafting temperature on the critical radiation intensity has been found. Above a given critical radiation intensity, the grafting is limited to the surface. Below that intensity, the grafting proceeds in the mass. Optical microscope and scanning electron microscope were used to study the structure of the cross section and surface of the grafted film. The grafted amount of the surface grafted film is about 1 mg/cm2, thus, the average adhesive strength is found to be above 100 kg/cm2. The electrical properties of the surface grafted film are the same as those in nongraft film. This indicates that the Gamma radiation-induced surface graft copolymer of at-AA to polytetrafluoroethyene could be used as constructional material with strong adhesive strength or as adhesive sealing material of the electronic parts.

本文采用共辐照工艺,在20°—40℃范围内研究了聚四氟乙烯辐射引发接枝苯乙烯-丙烯酸的动力学。找到了接枝温度与临界辐照强度的关系。高于临界辐照强度,接枝发生在表面,反之,接枝发生在整体。借光学显微镜和扫描电子显微镜研究了接枝膜的断面和表面结构。表面接枝膜的接枝量约1毫克/厘米~2,平均粘结强度高达100公斤/厘米~2以上。表面接枝膜的电性能与未接枝的聚四氟乙烯相仿。可知聚四氟乙烯表面辐射接枝苯乙烯-丙烯酸可用作强粘结强度的结构材料或电子元件的粘结密封材料。

 
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