Eidelman Naomi, Simon Carl G
American Dental Association Foundation, Paffenbarger Research Center, National Institute of Standards and Technology, Gaithersburg, MD 20899-8546.
National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
J Res Natl Inst Stand Technol. 2004 Apr 1;109(2):219-31. doi: 10.6028/jres.109.014. Print 2004 Mar-Apr.
A new FTIR technique was developed for characterizing thin polymer films used in combinatorial materials science. Fourier transform infrared microspectroscopy mapping technique was used to determine the composition of polymer blend gradients. Composition gradients were made from poly(L-lactic acid) (PLLA) and poly(D,L-lactic acid) (PDLLA) in the form of thin films (6 cm × 2 cm) deposited on IR reflective substrates. Three composition gradient films were prepared and characterized. The results demonstrate the reproducibility and feasibility of a new, high-throughput approach for preparing and characterizing polymer composition gradients. The combination of composition gradient film technology and automated nondestructive FTIR microspectroscopy makes it possible to rapidly and quantitatively characterize polymer composition gradients for use in combinatorial materials science.
开发了一种用于表征组合材料科学中使用的聚合物薄膜的新傅里叶变换红外光谱（FTIR）技术。采用傅里叶变换红外显微光谱映射技术来确定聚合物共混物梯度的组成。组成梯度由聚（L-乳酸）（PLLA）和聚（D，L-乳酸）（PDLLA）制成，呈薄膜形式（6厘米×2厘米），沉积在红外反射基板上。制备并表征了三种组成梯度薄膜。结果证明了一种用于制备和表征聚合物组成梯度的新型高通量方法的可重复性和可行性。组成梯度薄膜技术与自动化无损傅里叶变换红外显微光谱的结合，使得快速、定量地表征组合材料科学中使用的聚合物组成梯度成为可能。
