Binary copolymers of poly ethylene 2,6-naphthalate) (PEN) and poly(hexamethylene 2,6-naphthalate) (PHN) were synthesized and their sequence distributions were investigated over the entire range of copolymer composition by 13C nuclear magnetic resonance spectroscopy.
They are biopolymers which can be extracted from macroalgae or bacterial cultures and consist of unbranched binary copolymers of 1 4 glycosidically linked α- L-guluronic acid (G) and its C-5 epimer β- D-mannuronic acid (M) [ 7].
The mutual miscibility of five binary ethylene/norbornene copolymers of the NxE1−x/NyE1−y type where x and y represent the norbornene content in the first and second copolymers, respectively (with x/y of 0.36/0.52, 0.36/0.56, 0.36/0.62, 0.46/0.60 and 0.46/0.66), in five different compositions was studied by rheology and differential scanning calorimetry.
When one component is the minority, the disorder to order transition curve is similar with binary copolymer, but the curve shows the asymmetric property.
The degree of randomness of higher order than first order was proposed to characterize the alternating structure of binary copolymers.
A series of binary copolymers, poly{2,5-bis[ 4-octadecyloxyphenyl)oxycarbonyl]-styrene-co-2,5-bis[(4′-octadecyloxybipoly{2,5-bis[ 4-octadecyloxyphenyl(M-OC18-co-M-C18)), were synthesized via free radical poly{2,5-bis[ 4-octadecyloxyphenyl
The phase behaviour of the binary copolymer systems SMA SAN and SAN SAN can be described well using the copolymer repulsion model.
We report here simulation results for the phase behaviour in binary mixtures of the diblock copolymers.
Using different copolymers most of the remaining codons were then determined.
The phase behaviour and interaction parameters of binary blends of copolymers involving cyclohexyl methacrylate (CHMA), methyl methacrylate (MMA) and various styrene derivatives (styrene (S), α-methylstyrene (AMS) and p-methylstyrene (PMS)) are examined using the lattice fluid theory of Sanchez and Lacombe.
