Synchrotron SAXS and WAXS Studies on Changes in Structural and Thermal Properties of Poly[(R)-3-hydroxybutyrate] Single Crystals during Heating

The annealing and melting behavior of poly[(R)‐3‐hydroxybutyrate] (P(3HB)) single crystals were followed in real time by synchrotron small‐ (SAXS) and wide‐angle X‐ray scattering (WAXS) measurements. The real‐time SAXS measurements revealed that the P(3HB) single crystal exhibits a discontinuous inc...

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Veröffentlicht in:	Macromolecular rapid communications. 2005-05, Vol.26 (9), p.678-683
Hauptverfasser:	Fujita, Masahiro, Sawayanagi, Tomoharu, Tanaka, Toshihisa, Iwata, Tadahisa, Abe, Hideki, Doi, Yoshiharu, Ito, Kazuki, Fujisawa, Tetsuro
Format:	Artikel
Sprache:	eng
Schlagworte:	annealing Applied sciences Exact sciences and technology Organic polymers Physicochemistry of polymers poly[(R)-3-hydroxybutyrate] Properties and characterization SAXS single crystal Structure, morphology and analysis WAXS
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Beschreibung
Zusammenfassung:	The annealing and melting behavior of poly[(R)‐3‐hydroxybutyrate] (P(3HB)) single crystals were followed in real time by synchrotron small‐ (SAXS) and wide‐angle X‐ray scattering (WAXS) measurements. The real‐time SAXS measurements revealed that the P(3HB) single crystal exhibits a discontinuous increase of lamellar thickness during heating. The structural changes as observed by SAXS and WAXS were in response to the thermal properties of single crystals characterized by differential scanning calorimetry. A series of two‐dimensional small‐angle X‐ray scattering patterns of P(3HB) single crystal mats during the lamellar thickening process.
ISSN:	1022-1336 1521-3927
DOI:	10.1002/marc.200500030