Borverbindungen, 8. Mitteilung Umlagerung mittlerer O-B-O-Heterocyclen zu ringförmigen Oligomeren / Boron Compounds, Part 8 Rearrangement of Medium Sized O-B-O Heterocycles to Cyclic Oligomers

1977 ◽  
Vol 32 (12) ◽  
pp. 1408-1415 ◽  
Author(s):  
Ulrich W. Gerwarth
Keyword(s):  
Boron Atom ◽  
Ring Opening ◽  
Boron Compounds ◽  
Cyclic Oligomers ◽  
Boron Heterocycles

The condensation of phenyldihydroxyborane with pentane-1,5-diols yields no 1,3,2-dioxabora-cyclooctanes but oligomeric boron heterocycles. Their formation can be explained by an exchange of ligands of the boron atom, a process analogous to metathetic ring-opening polymerisation.

Exfoliation of layered silicate facilitated by ring-opening reaction of cyclic oligomers in PET–clay nanocomposites

Polymer ◽  
2005 ◽  
Vol 46 (7) ◽  
pp. 2201-2210 ◽  
Author(s):  
Sang-Soo Lee ◽  
Young Tae Ma ◽  
Hee-Woo Rhee ◽  
Junkyung Kim
Keyword(s):  
Ring Opening ◽  
Layered Silicate ◽  
Clay Nanocomposites ◽  
Ring Opening Reaction ◽  
Cyclic Oligomers

scholarly journals Mono- and di-cationic hydrido boron compounds

2015 ◽  
Vol 44 (32) ◽  
pp. 14359-14367 ◽  
Author(s):  
Rajendra S. Ghadwal ◽  
Christian J. Schürmann ◽  
Diego M. Andrada ◽  
Gernot Frenking
Keyword(s):  
Boron Atom ◽  
Boron Compounds ◽  
Stable Mono

Stable mono- and di-cationic hydrido boron compounds featuring CH2BH2(μ-H)BH2CH2 and CH2BH(μ-H)2BHCH2 cores are readily accessible by dehydrogenative hydride abstractions. NBO calculations revealed the occurrence of two B–H–B 3c–2e bonds in the HB(μ-H)2BH moiety of di-cations (7 and 8), where 43% is located at the H bridges and ∼28% at each boron atom.

Synthesis and Ring-Opening Polymerization of Poly(alkylene 2,6-naphthalenedicarboxylate) Cyclic Oligomers

1996 ◽  
Vol 29 (26) ◽  
pp. 8304-8307 ◽  
Author(s):  
Patricia Hubbard ◽  
William J. Brittain ◽  
William J. Simonsick ◽  
Charles W. Ross
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclic Oligomers

Preparation of crystalline and solvent resistant polycarbonates via ring-opening polymerization of cyclic oligomers

1994 ◽  
Vol 77 (1) ◽  
pp. 117-124 ◽  
Author(s):  
Daniel J. Brunelle ◽  
Herman O. Krabbenhoft ◽  
David K. Bonauto
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclic Oligomers

scholarly journals Bottle-grade polyethylene furanoate from ring-opening polymerisation of cyclic oligomers

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Jan-Georg Rosenboom ◽  
Diana Kay Hohl ◽  
Peter Fleckenstein ◽  
Giuseppe Storti ◽  
Massimo Morbidelli
Keyword(s):  
Ring Opening ◽  
Cyclic Oligomers

Cyclo-depolymerisation of poly(ethylene naphthalene-2,6-dicarboxylate) and ring-opening polymerisations of the cyclic oligomers obtained

2000 ◽  
Vol 10 (7) ◽  
pp. 1533-1537 ◽  
Author(s):  
Philip Hodge ◽  
Zhuo Yang ◽  
Abderrazak Ben-Haida ◽  
Corinne S. McGrail
Keyword(s):  
Ring Opening ◽  
Cyclic Oligomers ◽  
Poly Ethylene
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