The spherulitic growth rate of P(ES-co-6 mol % BS) was slower than that of neat PES at a given crystallization temperature. Both neat PES and P(ES-co-6 mol % BS) exhibited a crystallization regime II to III transition; moreover, the crystallization regime transition temperature of P(ES-co-6
mol % BS) shifted to a low temperature compared with that of neat PES. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122: 105-111, 2011″
“This report describes a new innovative pull-through technique find more of hindgut reconstruction with en bloc small bowel and colon transplantation in a Crohn’s disease patient with irreversible intestinal failure. The approach was intersphincteric and the anastomosis was established between the allograft colon and the recipient anal verge with achievement of full nutritional autonomy and anal continence.”
“Magnetic properties of the double perovskite oxide, Sr2TiMnO6, have been studied by means of bulk magnetization and powder neutron diffraction Nepicastat in vivo experiments. Low field magnetization data reveal transitions at similar to 45 K (T-C) and at similar to 15 K (T-N). A magnetic moment value of only similar to 0.23 mu(B)/F.U. is attained at 5 K in the 7 T field. Powder neutron diffraction studies suggest the possible antiferromagnetic order in this compound at 12 K with moments of similar
to 0.5 mu(B) at the Mn site. (C) 2011 SB525334 American Institute of Physics. [doi:10.1063/1.3562917]“
“Poly(L-lactic acid) (PLA) films are in use for various types of food packaging; however, a wider range of applications would be possible if the barrier properties of these films could be improved. To make such improvements, combinations of PLA with two nanofillers, laurate-intercalated Mg-Al layered double hydroxide (LDH-C-12) and a cationic organomodified montmorillonite (MMT) clay
(Cloisite (R) 30B), were investigated. The dispersion of these fillers in PLA by melt processing was explored using two methods, either by mixing the nanofillers with PLA granulate immediately before extrusion or by preparation and subsequent dilution of PLA-nanofiller masterbatches. After melt processing of these materials, PLA molecular weight, thermal stability, film transparency, morphology, and permeability characteristics were determined. Direct addition of LDH-C-12 drastically reduced the PLA molecular weight. Although this reduction in molecular weight was still very significant, it was less when a PLA/LDH-C-12 masterbatch was processed. In contrast, there was no significant reduction in PLA molecular weight when processing with Cloisite (R) 30B. However, film transparency was compromised when either LDH or MMT nanofillers were used.