Претраживање
Приказ резултата 11-20 од 157
Yb3+ doped dyphillosilicates prepared by thermally induced phase transformation of zeolites
(Maik Nauka/Interperiodica/Springer, New York, 2007)
Yb3+-doped Ba and Sr diphyllosilicates (hexacelsians) have been synthesized using the Na form of LTA zeolite by ion-exchange procedure and thermal treatment. The crystal structures of both doped samples are refined and ...
Synthesis and characterization of aliphatic hyperbranched polyesters
(The Society of Chemists and Technologists of Macedionia, 2008)
The synthesis of dendritic polymers, i.e., dendrimers (ideally branched) and hyperbranched polymers (non-ideally
branched) and investigation of their properties have gained large scientific attention over the last twenty ...
Synthesis and characterization of crosslinked polyurethanes
(The Society of Physical Chemists of Serbia, 2008)
Two polyurethane samples, crosslinked with aliphatic hyperbranched polyester, were synthesized and examined in this work. The sample PUPDMS-EO was prepared using ethylene oxide-poly(dimethylsiloxane)-ethylene oxide as ...
Poly(methacrylamide)/poly(itaconic acid) complexes
(The Society of Physical Chemists of Serbia, 2002)
Polymerization in a system containing template (linear macromolecule) which interacts with the growing polymer (a "daughter polymer") and influence its structure is called template polymerization. The ordering in the growing ...
Sinteza alifatskih hiperrazgranatih poliestara: "pseudo one-step" procedura“
(Belgrade : Serbian Chemical Society, 2008)
Hiperrazgranati polimeri (HBP) i dendrimeri pripadaju klasi dendritskih makromolekula. Za razliku od složene i dugotrajne sinteze dendrimera, HBP se mogu sintetisati korišćenjem jednostavne "one-step" procedure, pri čemu ...
Rheological and thermogravimetric analysis of unmodified and modified aliphatic hyperbranched polyester
(The Society of Physical Chemists of Serbia, 2008)
The influence of the type of end groups on the rheological and thermal properties of aliphatic hyperbranched polyesters (AHBP) was investigated in this work. Unmodified, hydroxy-functional AHBP sample of third pseudo ...
Thermal behaviour of Ag/PMMA nanocomposites synthesized by in situ method
(Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, 2008)
The influence of the surface modified silver nanoparticles (Np), used as a filler, on the thermal properties poly(methylmethacrylate) (PMMA) matrix, synthesized by “in situ” radical polymerization process, was studied. The ...
Termičke karakteristike nanokompozita Ag/PS
(Društvo inženjera plastičara i gumara IPG, Beograd, Srbija, 2008)
U radu je ispitivan uticaj nanočestica srebra (Ag) na termičke karakteristike polimerne matrice polistirena (PS). Ispitivanja su vršena metodom termogravimetrijske analize (TGA) u azotu u zavisnosti od koncentracije ...
The behavior of polyester-based hyperbranched polymers in dilute solution
(The Society of Physical Chemists of Serbia, 2002)
Due to its molecular structure and large number of end groups, hyperbranched polymers and dendrimers have numerous specific properties that differ significantly to those of linear polymers of similar chemical composition. ...
Sinteza i karakterizacija nanokompozita Ag/PS
(Belgrade : Serbian Chemical Society, 2008)
Ispitivan je uticaj površinski modifikovanih nanočestica srebra (Ag) na optičke i termičke osobine matrice polistirena (PS). Obojeni transparentni nanokompozitni filmovi, dobijeni direktnim mešanjem nanočestica Ag i ...