Infra-red Spectra of Polymethylmethacrylate

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Infra-red Absorption Spectra of Steroids

In this paper, the infra-red absorption spectra of a number of crystalline natural estrogens are presented and considered in relation to chemical structure. As a group, the natural estrogens are distinguished chemically from other steroids by the benzenoid structure of Ring A, which gives rise to certain infra-red absorption bands by which their spectra may be differentiated from those of other...

متن کامل

Infra-red Absorption Spectra of Pyrylium Salts

The infra-red absorption spectra of the unsubstituted pyrylium cation and of 25 di-, tri-, tetraand per&-substituted pyrylium salts (mostly perchlorates) with alkyl and/or phenyl groups are described. Assignments of IR bands are made in correlation with the spectrum of pyridine, and the variation of band position and intensity depending on substitution is discussed. Implications for the assignm...

متن کامل

Infra-Red Absorption Spectra of Chlorophylls and Derivatives.

We have measured the infra-red absorption spectra of chlorophyll and some of its derivatives in order to obtain information useful for eventual understanding of reversible transformations of this pigment. Such transformations are (a) Moliseh phase test, (b) bleaching by FeCl3, and (c) photochemical reduction by ascorbic acid-"Krasnovsky reaction" (10, 13, 16). Only in the case of the phase test...

متن کامل

Minimizing Strong Telluric Absorption in Near Infra-red Stellar Spectra

We have obtained high resolution spectra (R ∼ 25000) of an A star over varying airmass to determine the effectiveness of telluric removal in the limit of high signal to noise. The near infra-red line He I at 2.058μm, which is a sensitive indicator of physical conditions in massive stars, supergiants, H II regions and YSOs, resides among pressure broadened telluric absorption from CO2 and water ...

متن کامل

Infra-Red Plasmonic Sensors

Plasmonic sensors exploiting the localized surface plasmon resonance (LSPR) of noble metal nanoparticles are common in the visual spectrum. However, bio-sensors near the infra-red (NIR) windows (600–900 nm and 1000–1400 nm) are of interest, as in these regions the absorption coefficients of water, melanin deoxyglobin, and hemoglobin are all low. The first part of this paper reviews the work tha...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Kobunshi Kagaku

سال: 1961

ISSN: 1884-8079,0023-2556

DOI: 10.1295/koron1944.18.103