Results 161 to 170 of about 30,247 (183)
Some of the next articles are maybe not open access.
Heat capacity of poly(3-hydroxybutyrate)
The Journal of Chemical Thermodynamics, 2014The heat capacity of poly(3-hydroxybutyrate) (P3HB) has been measured using a quantum design Physical Property Measurement System (PPMS), differential scanning calorimetry (DSC), and temperaturemodulated differential scanning calorimetry (TMDSC) over the temperature range of (1.9 to 460) K.
A. Czerniecka +4 more
openaire +1 more source
Plasticization of bacterial poly(3-hydroxybutyrate)
Macromolecules, 1992The effect of increasing amounts of a plassticizer, di-n-butyl phtalate, on the glass transition of poly(3-hydroxybutyrate) was examined over the whole concentration range, from pure polymer to pure ...
Giuseppina Ceccorulli +2 more
openaire +1 more source
Crystallization of Poly[(R)-3-hydroxybutyrate]
2019Poly[(R)-3-hydroxybutyrate] (PHB) is the first produced and most studied polyhydroxyalkanoate (PHA), a class of polymers that can be synthesized by a variety of bacteria through fermentation. PHB, and with it most PHAs, is produced in vivo, contrarily to all other types of bio-based and biodegradable polymers that are attained by chemical reactions ...
Maria Laura Di Lorenzo, René Androsch
openaire +2 more sources
Poly(3-hydroxybutyrate) granules ofBacillus megaterium
Folia Microbiologica, 1994Cells ofBacillus megaterium contain 35–45% of poly(3-hydroxybutyrate) (PHB) at the beginning of the stationary phase. This amount is only slightly affected by the medium composition. The PHB granules are spherical with the mean diameter of 1.15 μm.
O. Kofroňová +2 more
openaire +1 more source
Vibrational Spectroscopy, 2010
Abstract This work presents a FT-Raman study (λ0 = 1064 nm) of naturally occurring polyester poly[(R)-3-hydroxybutyrate] (PHB) and its copolymer poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate] (PHBV) with 5, 8 and 12 mol % of HV (hydroxyvalerate).
Celly M.S. Izumi, Marcia L.A. Temperini
openaire +1 more source
Abstract This work presents a FT-Raman study (λ0 = 1064 nm) of naturally occurring polyester poly[(R)-3-hydroxybutyrate] (PHB) and its copolymer poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate] (PHBV) with 5, 8 and 12 mol % of HV (hydroxyvalerate).
Celly M.S. Izumi, Marcia L.A. Temperini
openaire +1 more source
Biodegradable poly‐3‐hydroxybutyrate as a fertiliser carrier
Journal of the Science of Food and Agriculture, 2016AbstractBACKGROUNDIncreasing use of mineral fertilisers can lead to accumulation of fertilisers in soil, water and foodstuffs. One of the approaches to preventing these problems is to develop controlled release forms of fertilisers.RESULTSExperimental formulations of the nitrogen fertiliser urea loaded in a degradable matrix of the natural polymer poly‐
Tatiana G, Volova +2 more
openaire +2 more sources
Poly(3-Hydroxybutyrate) from Carbon Monoxide
2011Abstract The potential applications of naturally occurring poly(3-hydroxybutyrate) (PHB) is demonstrated by a summary of its variable mechanical properties in comparison with different commercially available polymers. This comparison underlines the striking similarity to the most-produced materials in the world, the poly(olefin)s, which offers many ...
Robert Reichardt, Bernhard Rieger
openaire +1 more source
ULTRASONIC DEGRADATION OF POLY(3-HYDROXYBUTYRATE)
2012Određivanje vrijednosti molekulnih masa kao i neuniformnosti polimera od velike je praktične važnosti, jer većina fizičkih, kemijskih i uporabnih svojstava polimera znatno ovisi o tim vrijednostima. Molekulna masa polimera može se vrlo jednostavno odrediti mjerenjem viskoznosti razrijeđenih polimernih otopina, jer je povezana s viskoznošću polimerne ...
Erceg, Matko, Krešić, Irena
openaire