The hitherto unreported constants in the Mark-Houwink viscosity-molecular weight relationship have been determined for both number-average and weight-average molecular weights for cellulose tripropionate in chloroform. Five narrow molecular weight range samples of a prepared cellulose tripropionate were ...
Assembly of nanodiscs Lipids were dissolved in chloroform (1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC)), 20:9:1 chloroform–methanol–water (PIP2) or 80:40:1 chloroform–methanol–HCl (PIP3) at a final concentration of 50 mg ml−1 (DMPC) or 10 mg ml−1 PIP2 or ...
(NMP) with 0.06 M LiBr and NMP stirred over P2O5were used as mobile phase for four of the polyimides; NMP with 0.06 M LiBr and NMP stirred over P2O5were used as mobile phases for four of the polyimides; NMP with 0.06 M LiBr tetrahydrofuran (THF) and chloroform served as mobile ...
Chloroform 19 Polymethyl methacrylate 18.4–26.3 n-Hexane 14.9 Poly vinyl alcohol 25.8 n-Pentane 14.3 Poly vinyl chloride 19.2–22.1 Toluene 18.2 Polystyrene 17.4–21.1 Water 47.9 Poly vinyl acetate 18.0–19.1 Tetrahydrofuran (THF) 18.5 Polyamide (Nylon 6,6) 27.8 Dimethyl acetamide (DMAc) 24.7 Poly...
- 《Journal of Polymer Science Part A Polymer Chemistry》 被引量: 72发表: 1997年 Molecular weight determinations of polyamides by N-trifluoroacetylation By N-trifluoroacetylation (TFA) polyamides become soluble in ordinary organic solvents such as acetone, butanone, methylene chloride, chloroform and...
Elution behavior of organic compounds in gel permeation chromatography was investigated using chloroform as eluent. In aliphatic hydrocarbons, the elution counts decreased linearly with increasing the molecular volumes. In aromatic hydrocarbons, the relation between molecular volume and elution count slightly ...
The determination of the molecular weight distribution of polyethylene terephthalate by GPC at room temperature is described. The solvent used is o-chlorophenol-chloroform (1:9) and pure chloroform is used as eluent. K and alpha of the Mark-Houwink equation of polyethylene terephthalate and of ...
of column. The size of the glass beads is between 170 mesh (0.088 mm diameter) and 115 mesh (0.125 mm diameter). They were purified with HCl, concentrated HNO3 and acetone. About 0.5 to 1.0 g of the sample was dissolved in chloroform, and then methanol was added to the solution until...
Environmental stress crack resistance of and absorption of low-molecular-weight penetrants by poly(aryl ether ether ketone) The diffusion of chloroform, bromoform, methylene chloride, α,α′-dichlorotoluene and tetrahydrofuran into amorphous poly(aryl ether ether ketone) (PEEK)... JN Hay,DJ Kemmis...
(distilled water); Chloroform, In H = 3649/T + 10.63 (seawater); Methyl Chloroform, In H = 3905/T + 13.04 (seawater) and In H = 2915/T + 9.15 (distilled water); Carbon Tetrachloride, In H = 3230/T + 11.27 (seawater) and In H = 2918/T + 9.77 (distilled water); where T ...