Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Crystal growth poly

The theory of crystal growth accordingly starts usually with the assumption that the atoms in the gaseous, diluted, or hquid mother phase will have a tendency to arrange themselves in a regular lattice structure. We ignore here for the moment the formation of poly crystalhne solids. In principle we should start with the quantum-mechanical basis of the formation of such lattice structures. Unfortunately, however, even with the computational effort of present computers with a performance of about 100 megaflops... [Pg.854]

Tao C, Zheng S, Mohwald H, Li J (2003) CdS crystal growth of lamellar morphology within templates of poly electrolyte/surf actant complex. Langmuir 19(21) 9039-9042... [Pg.211]

Vijay Kumar R, Elgamiel R, Diamant Y, Gedanken A (2001) Sonochemical preparation and characterization of nanocrystalline copper oxide embedded in poly(vinyl alcohol) and Its effect on crystal growth of copper oxide. Langmuir 17(5) 1406-1410... [Pg.266]

Solvothermal growth of single crystals or poly crystalline aggregates from hydro-thermal or ammonothermal solution. [Pg.240]

Figure 2.13 Variation of the crystal growth rate with temperature for poly(ethy-lene terephlhalate), T , = 280°C. (From Ref. 11.)... Figure 2.13 Variation of the crystal growth rate with temperature for poly(ethy-lene terephlhalate), T , = 280°C. (From Ref. 11.)...
Accordingly, the influence of MW on the crystallization behaviors of semicrystalline polymers has been studied in various articles. For example, linear crystal growth rates of poly(ethylene oxide) and poly(ethylene succinate) (PES) reach a minimum value at a critical MW. This value is related to the crystallization transition from an extended chain to a folded chain conformation [96,97], suggesting that high MW polymers require sufficient reconformation time to achieve an ordered structure. As evidence of this MW dependence of the semicrystalline polymer on... [Pg.377]

The role of interfaces for the crystallization of poly(alkylthiophene)s would best be elucidated by comparison with crystal growth under conditions of complete absence of any interface. Such conditions may seemingly be achieved if the nucleation and growth can take place completely in the liquid. Some organic fluids like cyclohexanone (ketohexamethylene, C HioO) and n-dodecane (C12H2J), are poor solvents for many poly(alkylthiophene)s, but have an increasing... [Pg.113]

An interesting special case of crystal growth from solution are the macroscopic polymer single crystals of diacetylenene, the poly-diacetylene crystals. For their preparation, as a first step, macroscopic molecular crystals of substituted diacety-... [Pg.68]

Wolkowicz, M., Nucleation and crystal growth in sheared poly(l -butene) melts, /. Polym. Sci. Polym. Symp., 63, 365,1978. [Pg.141]

See other pages where Crystal growth poly is mentioned: [Pg.409]    [Pg.155]    [Pg.185]    [Pg.35]    [Pg.521]    [Pg.193]    [Pg.95]    [Pg.45]    [Pg.14]    [Pg.22]    [Pg.244]    [Pg.19]    [Pg.75]    [Pg.188]    [Pg.5]    [Pg.4405]    [Pg.88]    [Pg.94]    [Pg.474]    [Pg.118]    [Pg.203]    [Pg.158]    [Pg.107]    [Pg.753]    [Pg.596]    [Pg.92]    [Pg.213]    [Pg.37]    [Pg.394]    [Pg.348]    [Pg.660]    [Pg.125]    [Pg.820]    [Pg.272]    [Pg.4404]    [Pg.69]    [Pg.364]    [Pg.521]    [Pg.130]    [Pg.820]    [Pg.72]   
See also in sourсe #XX -- [ Pg.3 , Pg.11 , Pg.352 ]



SEARCH



Crystal growth rates poly

Poly , crystal

Poly , crystallization

Poly block copolymers crystal growth

Poly growth rate against crystallization

© 2024 chempedia.info