نتایج جستجو برای: polytetrahydrofuran

تعداد نتایج: 35  

Journal: :Macromolecular Chemistry and Physics 2013

Journal: :Chemical communications 2007
Toshiyuki Kida Takashi Minabe Shogo Okabe Mitsuru Akashi

Partially 2,3-O-methylated amyloses efficiently form inclusion complexes with polytetrahydrofuran and poly(epsilon-caprolactone) by simply mixing them in DMSO-H(2)O (1 : 9) solution, in contrast to the case of the parent amylose in which the corresponding inclusion complexes are only slightly formed.

Journal: :Macromolecular bioscience 2013
Rachmawati Rachmawati Albert J J Woortman Katja Loos

Amylose and polytetrahydrofuran (PTHF) are mixed in an aqueous solution to form inclusion complexes. DSC shows that immediate mixing results in complexes having lower melting temperatures compared with complexes prepared with longer mixing times. The washed complexes melt at higher temperatures compared with the corresponding unwashed complexes. XRD indicates that amylose-PTHF complexes diffrac...

2010
Jürgen Voss Werner Baum Ulrich Behrens

Several 1,4-dichlorobicyclo[2.2.2]octanecarboxamides were prepared, which were expected to be suitable precursors for the electrochemical synthesis of [2.2.2]propellanes. Their potentiostatic electroreduction at extremely negative potentials in THF, however, did not lead to the expected [2.2.2]propellanes. Instead, protio-dechlorination to form the corresponding bicyclo[2.2.2]octanecarboxamides...

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