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AC发泡剂中一种助发泡剂的鉴定

光谱学与光谱分析 2004年第12期24卷 1553-1555页

作者：何文绚 robert shanks 福建省分析测试技术研究所福建福州350003 Department of Applied Chemistry RMIT UniversityMelbourneVic.3001Australia

目前国内外通过在AC发泡剂中添加各种促进剂进而获得改性AC的方法已成为一种趋势。添加何种改性剂无疑是研究改性AC的关键。因此定性分析AC中的改性剂 ,对改性AC的研发将有极大的帮助。文章应用由作者在VibrationalSpectroscopy上首次... 详细信息

目前国内外通过在AC发泡剂中添加各种促进剂进而获得改性AC的方法已成为一种趋势。添加何种改性剂无疑是研究改性AC的关键。因此定性分析AC中的改性剂 ,对改性AC的研发将有极大的帮助。文章应用由作者在VibrationalSpectroscopy上首次提出的薄层色谱显微傅里叶红外联用的方法 ,鉴定出某改性AC中一种罕见添加剂的官能团 ,结合元素分析及化学物性分析等 ,推测出此添加剂的结构。通过对推测物质碎裂机理的解释和未知添加剂质谱图的分析 ,进一部验证了该添加剂为所推测的物质。这种鉴定方法同样适用于AC中其他无标准图谱的改性剂分析。

关键词：改性剂 AC发泡剂添加剂促进剂官能团研发碎裂显微罕见首次

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有机橡胶助剂的全分析

光谱学与光谱分析 2010年第3期30卷 654-658页

作者：何文绚 robert shanks 游叶明闽江学院化学与化学工程系福建福州350108 澳大利亚皇家墨尔本理工大学应用科学学院澳大利亚墨尔本Vic．3001

橡胶产品中橡胶助剂的分析有重要现实意义。由于橡胶产品中添加的助剂种类较多,添加量差别较大,部分助剂又已发生反应,因此进行橡胶助剂的全分析是一项有较高难度的工作。通过中压色谱分离,红外光谱定性的方法,鉴定了乙丙橡胶助剂中的... 详细信息

橡胶产品中橡胶助剂的分析有重要现实意义。由于橡胶产品中添加的助剂种类较多,添加量差别较大,部分助剂又已发生反应,因此进行橡胶助剂的全分析是一项有较高难度的工作。通过中压色谱分离,红外光谱定性的方法,鉴定了乙丙橡胶助剂中的矿物油、邻苯二甲酸酯、植物油等3种软化剂,以及残余的硫化促进剂M和防老化剂苯乙烯化苯酚;采用固相萃取去除助剂中主量成分矿物油,以减少对其他少量助剂成分的干扰,通过气质联用法,推测出橡胶助剂中的2,6-二叔丁基-4-甲基苯酚防老剂、残余的秋兰姆类硫化促进剂,同时利用气质联用仪,直接测定乙丙橡胶抽提液,鉴定了残余的活泼性物质过氧化苯甲酰类硫化剂。文章研究结果可供其他橡胶体系有机助剂全分析的借鉴。

关键词：橡胶助剂红外光谱气质联用中压色谱

Morphology and Phase Composition of Gelatin-Starch Blends

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Chinese Journal of Polymer Science 2014年第1期32卷 108-114页

作者： Xing-xun Liu Yan-fei Wang Nuo-zi Zhang robert A.shanks Hong-sheng Liu Zhen Tong Ling Chen 余龙 Centre for Polymers from Renewable Resources ERCPSP SCUT School of Materials Science and Engineering SCUT School of Applied Science RMIT University CSIRO Materials Science and Engineering

Morphology and phase compositions of different starch-gelatin blends were investigated by various microscopes： optical, SEM and synchrotron FTIR microscopy. A high amylose （80%） corn starch, grafted with hydroxypropyl to enhance flexibilty and hydrophilicity, and plasticized by poly（ethylene glycol）（PEG）, was used in this work. SEM revealed that the surface became smoother after adding PEG. Optical microscopy observation revealed that compatibility between gelatin and starch was improved by adding PEG. An FTIR beam focused on a 5 ~tm x 5 ~tm detection area by the micro-spectroscope was used to map chemical composition. The ratio of areas of the saccharide bands （1180-953 cm-1） and the amide I and II bands （1750-1483 cm-1） was used to monitor the relative distributions of the two components in the blends. The FTIR maps indicated that gelatin constituted the continuous phase up to 80% of starch content. All of the FTIR spectra showed contributions from both starch and gelatin absorptions, therefore indicating that complete demixing with pure starch and gelatin domains did not occur. The PEG improved the compatibility of the gelatin-starch blends.

关键词： Biopolymer Drug capsule Starch Gelatin Morphology Phase FTIR Synchrotron.

In situ small angle X-ray scattering investigation of the thermal expansion and related structural information of carbon nanotube composites

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Progress in Natural Science:Materials International 2012年第6期22卷 673-683页

作者： Ludovic Dumee Aaron Thornton Kallista Sears Jurg Schütz Niall Finn Steven Spoljaric robert shanks Chris Skourtis Mikel Duke Stephen Gray Institute for Frontier Materials Deakin UniversityPigdons Road-Waurn Ponds campusGeelongVIC 3216-Australia Institute for Sustainability and Innovation Victoria UniversityHoppers CrossingVIC 3029-Australia CSIRO Materials Science and Engineering ClaytonVIC 3108-Australia Department of Biotechnology and Chemical Technology.Aalto University School of Chemical Technology.Aalto Espoo.Finland School of Applied Sciences RMIT UniversityLa Trobe St.MelbourneVIC 3000Australia School of Engineering and Science Victoria University.Hoppers Crossing.VIC 3029-Australia

In-sim thermal expansion tests on a series of carbon nanotube bucky-paper composites were performed with direct heating within a synchrotron SAXS *** impact of the samples density and morphology as well as the chemistry and degree of decoration of the carbon nanotubes on the scattering patterns were investigated and correlated to the materials *** results demonstrate that simple densification techniques,such as acetone dipping or gold electroless deposition,could reduce greatly the displacements of the carbon nanotubes within the structure and lead to more thermally stable material.

关键词： Carbon nanotube composites Thermal expansion bucky-paper Small angle X-ray scattering Carbon nanotube densification

Characterization and Thermal Behaviour of Polymer Matrix Stabilized Nematic Liquid Crystal Phase

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Characterization and Thermal Behaviour of Polymer Matrix Sta...

甘肃省化学会第二十四届年会

作者： robert A.shanks Dumitru Pavel Applied Chemistry RMIT UniversityGPO Box 2476VMelbourne3001Australia

The thermal behaviour of polymer dispersed liquid crystals (PDLC), blends of poly (ethylene -co -methylacrylic acid) (PEMA) with 4-(n-hydroxypropoylxy)-4’-cyanobiphenyl (H3CB) prepared by solvent-induced phase separation (SIPS) method, has been characterized using differential scanning calorimetry (DSC) and polarized light microscopy (POM). Study shows polymer matrix may stabilize the polymer dispersed nematic LC phase. The concentration of the mixture of PEMA’ H3CB must be least 30 wt %, which will exhibit nematic to isotropic transition phase during heating or cooling. Above 30 wt % H3CB the mixtures exhibited nematic phase, and this was detected as a splitting of the nematic-isotropic peak in the DSC thermograms. The clearing temperature of the PEMA/H3CB mixtures were higher than that of pure H3CB’s, the average increasing being 14℃, which is the evident that the polymer matrix could stable the nematic phase. This behaviour is in contrast with other reports about polymer-dispersed liquid crystals. According to Smith et al theory, the liquid-crystal solubility limit, A, in the polymer matrix was calculated to be 39.9. This value is much higher than the typical values ranging from 10 to 20 reported by smith et al.

关键词： Polymer dispersed liquid crystal LC droplet Liquid crystal, blends

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一种助发泡剂的鉴定

一种助发泡剂的鉴定

三硅醇异丁基倍半硅氧烷改性聚氨酯复合材料的制备、结构及性能研究

中国质谱学会第七届会员代表大会暨学术报告会

作者：何文绚 robert shanks 福建省分析测试技术研究所 Department of Applied Chemistry RMIT UniversityMelbourneVic.3001Australia

AC发泡剂是世界上产耗量最大、改性品种最多的发泡剂。由于受到成本、效能等因素的制约,开发替代AC的新产品十分困难,而且不同产品有不同的加工最佳条件,事实上不可能使用同一结构的发泡剂满足所有加工要求。通过加入各种助剂或与其他... 详细信息

AC发泡剂是世界上产耗量最大、改性品种最多的发泡剂。由于受到成本、效能等因素的制约,开发替代AC的新产品十分困难,而且不同产品有不同的加工最佳条件,事实上不可能使用同一结构的发泡剂满足所有加工要求。通过加入各种助剂或与其他发泡剂复配对AC发泡剂进行改性的方法,越来越成为研究开发人员关心的重点。因此,对各种特殊性能产品的剖析能为缩短研究周期,拓展开发人员研究思路提供一条十分便捷的途径。

关键词： blowing agent FTIR microscopy gas chromatography-mass spectrometry (GC/MS) TLC

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三硅醇异丁基倍半硅氧烷改性聚氨酯复合材料的制备、结构及性能研...

中国化学会第28届学术年会

作者：潘睿 robert shanks Ing Kong 四川师范大学化学与材料科学学院 School of Applied Sciences RMIT University

＜正＞采用原位聚合方法制备了聚氨酯基三硅醇异丁基倍半硅氧烷（trisilanolisobutyl POSS,缩写TSI-POSS）杂化复合材料,其中TSI-POSS的含量分别为7%、13%、22%。通过傅里叶红外光谱仪对复合材料化学结构进行分析表征;应用热失重分析仪... 详细信息

＜正＞采用原位聚合方法制备了聚氨酯基三硅醇异丁基倍半硅氧烷（trisilanolisobutyl POSS,缩写TSI-POSS）杂化复合材料,其中TSI-POSS的含量分别为7%、13%、22%。通过傅里叶红外光谱仪对复合材料化学结构进行分析表征;应用热失重分析仪（TGA）、动态热机械分析仪（DMA）、广角X射线散射仪（WAXS）对复

关键词：三硅醇异丁基倍半硅氧烷聚氨酯复合材料

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电底火

火工情报 2001年第1期 108-112页

作者： COOK.Todd.D. SHLUCKEBIER,David,K. shanks,robert,B. 彭和平

用于轻武器发射的电底火包括一个导电壳体(10)，位于壳体底部(11)的一个小孔(12)，导电炸药(13)、电接点(14)、连接部分(15)和一个绝缘衬垫(16)。

关键词：电底火轻武器导电炸药导电接头绝缘衬绝缘材料激发方式

Validation of PCR for the detection of Pseudomonas aeruginosa from corneal samples

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International Journal of Ophthalmology(English edition) 2011年第3期4卷 262-268页

作者： Maria E.Hillenbrand Paul P.Thompson robert M.Q.shanks Regis P.Kowalski The Charles T.Campbell Ophthalmic Microbiology Laboratory UPMC Eye CenterOphthalmology and Visual Sciences Research CenterUniversity of Pittsburgh School of Medicine

AIM: To determine a species-specific real-time polymerase chain reaction (PCR) assay to detect Pseudomonas aeruginosa (PA),a secondary DNA target for PA that may provide a universal target for other bacterial pathogens,and validate both assays for diagnostic ***: PCR detection was established against the ecfX PA gene and the 16S rRNA gene using known PA keratitis *** outcome parameters for both assays were 'limit of detection' (LOD),amplification efficiency (AE),and PAGE amplified product *** assays were validated against 20 true-positive clinical samples positive for PA DNA and 20 true-negative samples containing no PA *** statistics and PAGE analysis were used as outcome ***: AE of the ecfX assay was 96.6%,and LOD was 33.6 copies of target DNA per *** of the 16S rRNA assay was 103.4%,and LOD was 8.12 copies per *** sensitivity,specificity,positive predictive value,negative predictive value,and efficiency for the ecfX and 16S rRNA assays were [75%,95%,94%,79%,and 85%],and [70%,100%,100%,77%,and 85%],*** PCR assays were validated,followed by confirmation of DNA patterns from PAGE ***: The PCR methodology described here may be a useful adjunct to standard methods in the diagnosis of PA keratitis.

关键词： Pseudomonas aeruginosa cornea real-time PCR ecfX 16S rRNA