Кл.слова (ненормированные):
Physicochemical and mechanical properties -- Polyhydroxyalkanoates -- Quaterpolymers -- Biocompatibility -- Cell culture -- Chain length -- Chains -- Decomposition -- 3-Hydroxyhexanoate -- Degrees of crystallinity -- Elongation at break -- Physico-chemical and mechanical properties -- Polyhydroxyalkanoates -- Quaterpolymers -- Short chain lengths -- Thermal decomposition temperature -- Film preparation
Аннотация: Cupriavidus eutrophus В10646 was used to synthesize a series of polyhydroxyalkanoate (PHA) quaterpolymers composed of the short-chain-length 3-hydroxybutyrate (3HB), 4-hydroxybutyrate (4HB), and 3-hydroxyvalerate (3HV) and the medium-chain-length 3-hydroxyhexanoate (3HHx). The molar fraction of 3HB in the quaterpolymers varied between 63.5 and 93.1 mol.%, 3HV – between 1.1 and 24.6 mol.%, 4HB – between 2.4 and 15.6 mol.%, and 3HHx – between 0.4 and 4.8 mol.%. The properties of PHA quaterpolymers were significantly different from those of the P(3HB) homopolymer: they had much lower degrees of crystallinity (up to 30–45%), and lower melting points and thermal decomposition temperatures, with the interval between these temperatures remaining practically unchanged. Films prepared from PHA quaterpolymers were rougher and more porous than P(3HB) films; they showed higher values of elongation at break (up to 6–113%), i.e. were more elastic. Films prepared from PHA quaterpolymers were biocompatible and had no toxic effect on mouse fibroblast NIH 3T3 cells. © 2016 Elsevier Ltd
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Держатели документа:
Siberian Federal University, 79 Svobodnyi Avenue, Krasnoyarsk, Russian Federation
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Institute of Chemistry and Chemical Technology of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
L.V. Kirensky Institute of Physics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Volova, T. G.; Волова, Татьяна Григорьевна; Vinogradova, O. N.; Zhila, N. O.; Жила, Наталья Олеговна; Peterson, I. V.; Петерсон, Иван Викторович; Kiselev, E. G.; Киселев, Евгений Геннадьевич; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Sukovatiy, A. G.; Суковатый, Алексей Григорьевич; Shishatskaya, E. I.; Шишацкая, Екатерина Игоревна