The Relationship Between Physicochemical Surface Parameters,Chemical Structure, and Environmental Effect of Surfactants

9612663罗森这项建议是为了进一步研究各种阴离子表面活性剂的毒性与其某些物理化学界面性质之间的关系，这是首席研究员及其同事在与宝洁公司环境科学部的一项合作研究项目中发现的。拟议的项目是将这项研究扩大到其他类型的表面活性剂(阳离子、非离子和两性离子)和表面活性剂的混合物，目的是确定这种关系是否也适用于这些体系。物理化学性质将根据主要研究人员实验室进行的表面张力测量计算；毒性测量将由宝洁公司进行。表面张力测量将在pH值和电解质组成与毒性测量所用相同的水中进行。此外，还将研究其他物理化学界面性质，以进行毒性校正。由于所有这些物理化学性质都与表面活性剂的化学结构有已知的关系，本项目的结果应该为选择或设计对环境影响最小的商业使用表面活性剂提供指导方针。***

9612663 Rosen This proposal is for the further investigation of a relationship between the toxicity of various anionic surfactants and certain of their physicochemical interfacial properties discovered by the principal investigator and his co-workers in a cooperative research project with the Environmental Science Department of the Procter and Gamble Company. The proposed project is for an extension of that investigation to other types of surfactants (cationic, nonionic, and zwitterionic) and to mixture of surfactants, with the aim of determining whether that relationship holds also for these systems. The physicochemical properties will be calculated from surface tension measurements conducted in the principal investigator's laboratory; the toxicity measurements will be conducted by the Procter and Gamble Company. The surface tension measurements will be made on solutions of the surfactants in water of the same pH and electrolyte composition as that used for the toxicity measurements. In addition, other physicochemical interfacial properties will be investigated for possible correction with toxicity. Since all of these physicochemical properties have known relationships to the chemical structure of the surfactant, the results of this project should provide guidelines for the selection or design of surfactants with minimum environmental impact for commercial use. ***