Quantitative analysis of dimethyl titanocene by iodometric titration, gas chromatography and NMR

Validation of quantitative NMR

“…For the round robin test NMR-1 the following chemicals have been dissolved in CDCl 3 (also assigned as mixture of sample NMR-1): Dur (amount fraction: 81.50 mol/mol%), ETS (13.25 mol/mol%), Cy 12 (2.70 mol/mol%), D 4 (2.23 mol/mol%) and DMB (0.351 mol/mol%). Sample CCQM-P3 contains Dur (94.22 mol/mol%), ETS (1.839 mol/mol%), Par (1.253 mol/mol%), Cy 12 (1.087 mol/mol%) and D 4 (1.601 mol/mol%) dissolved in benzene-d 6 . Sample NMR-2 consists of Dur (97.10 mol/mol%), ETS (1.024 mol/mol%mol%), Par (0.702 mol/mol%), Cy 12 (0.793 mol/mol%) and D 4 (0.380 mol/mol%) dissolved in benzene-d 6 .…”

On‐line prediction of crystallinity spatial distribution across polymer films using NIR spectral imaging and chemometrics methods

“…Nuclear magnetic resonance (NMR) spectroscopy has also been used to obtain physical, chemical and structural information about polymer phases (Bergmann, 1981; Pelsoci, 2007). Application of this method is typically expensive, time consuming and destructive (Vailaya et al, 2001; Saeki et al, 2003). X‐ray scattering methods are a family of non‐destructive methods based on the scattered intensity of a beam hitting a sample and providing information about the average structure and composition (Brown et al, 1973; Polizzi et al, 1991; Albano et al, 2003; Pantani et al, 2005; Pelsoci, 2007; Briskman, 2007).…”

Dimethyltitanocene: From Millimole to Kilomole

“…A laboratory-scale procedure for the synthesis of dimethyltitanocene and a titration method for its quantitative analysis have been published. All reagents were purchased from commercial sources and were used without purification.…”