Wyniki wyszukiwania - Biblioteka Nauki

1

The influence of soft segment on the properties of UV-curable urethane-methacrylates

100%

Tarasiuk B.

|

2006

|

tom Vol. 8, nr 3

95-98

EN

The synthesis of urethane-methacrylates UV-cured resins were intended for application as protective coatings for optical fibers. Isophorone diisocyanate, oligo(oxypropylene)diol, oligo(oxybutylene)diol and 2-hydroxyethyl methacrylate were used for synthesis. Active diluents butyl and 2-ethylhexyl acrylates or their mixtures, and 2,2-dimethoxy-2-phenylacetophenone as a photo initiator were added to the urethane-methacrylates dimmers comprising polymerization-active double bonds. The compositions were characterized by the determination of physicochemical, mechanical and thermal properties. The utility of these compositions for protective soft, hardness and intermediate coatings of optical fibers was checked and confirmed under manufacturing conditions.

2

Polyurethane preparation on the base of sulfidoesterdiol-derivatives of biphenyl-bis(thioalkylenecarboxylic acids)

100%

Tarasiuk B.

|

2001

|

tom z. 146

157-160

EN

New sulfidoesterdiols were obtained through condensation of biphenyl-bis(thioalkylene-carboxylic acids) with 1,4-bis(hydroxymethyl)cyclohexane. Thioacids used in the reaction were synthesized with bis(4-mercaptophenyl) and 3-bromopropionic or 4-bromobutyric acids. The obtained sulfidoesterdiols and HDI or MDI were used in the synthesis of polyurethanes. The structure of the obtained monomers and polymers was confirmed by means of elementary analysis IR spectroscopy and by magnetic proton resonance. Physico-chemical and thermal properties of the new polyurethanes were defined.

3

Synteza i właściwości fizykochemiczne oraz mechaniczne poliuretanoakrylanów

100%

Tarasiuk B.

|

1999

|

tom z. 140

67-70

PL

Badania dotyczyły optymalizacji syntezy żywic uretanowo-akrylowych utwardzanych UV, przeznaczonych na powłoki ochronne światłowodów. Do syntez wykorzystano oligoeterole, diizocyjaniany i metakrylan hydroksyetylu. Do dimerów uretanowo-akrylowych zawierających zdolne do polimeryzacji wiązania podwójne dodawano w charakterze aktywnego rozcieńczalnika akrylany alkilowe. Scharakteryzowano fizykochemiczne i mechaniczne właściwości kompozycji przed i po utwardzeniu. Przydatność otrzymanych kompozycji jako powłok ochronnych światłowodów potwierdzono w zrealizowanym procesie technologicznym.

EN

Studies concerned with an optimalization of the synthesis of urethane-acrylic UV-cured resins intended for protective coatings of optical waveguides were presented. Oligoetherdiols, diisocyanates, as well as hydroxyethyl methacrylic were used for synthesis. Active diluents alkylene acrylates or their mixtures were added to the urethane-acrylic dimers containing polymerization-active double bonds. The compositions were characterized by physicochemical and mechanical properties before and after curing. The applicability of the obtained compositions for protective coating of optical fibres was confirmed in the technological process which was carried out.

4

Synteza, struktura i wlasciwosci 2-aryloksypropionianow 2[2-chlorobenzoiloksy]etylo-S-izotiouroniowych

100%

Tarasiuk B.

|

nr 1

1-6

5

Bis(karboksyloalkanotio)bifenyle jako nowe monomery alifatyczno-aromatycznych polisulfidoestrów

63%

Tarasiuk B. , Podkościelny W.

|

2001

|

tom Vol. 50, nr 23

420-423

PL

Otrzymano nowe bis(karboksyloalkanotio)bifenyle w reakcji kondensacji bis(4-merkaptofenylu) z niektórymi kwasami halogenoalkanokarboksylowymi. Reakcję przeprowadzono w wodno-etanolowym roztworze wodorotlenku sodu. Otrzymane monomery zastosowano do syntezy polisulfidoestrów, metodą wysokotemperaturową w rozpuszczalniku, z cykloalifatycznym diolem - 1,4-bis(hydroksymetylo)cykloheksanem. Strukturę otrzymanych monomerów i polimerów potwierdzono przy użyciu analizy elementarnej spektroskopowej w podczerwieni oraz magnetycznego rezonansu protonowego. Określono także właściwości fizykochemiczne i termiczne nowych polisulfidoestrów.

EN

New thioalkanecarboxylic acids derivatives of the biphenyl were obtained by condensation reaction of bis(4-mercaptophenyl) with halogenalkanecarboxylic acids, in aqeous-ethanol sodium hydroxide solution. By high temperature were solution polycondensation of one of these acids with 1,4-bis(hydroxymethyl)cyclo-hexane, new polysulfidoesters were obtained. The structures of the monomers and polymers were confirmed by elemental analysis, FTIR and 1 H-NMR spectroscopy. Physicochemicl, thermal properties of the obtained polymers were determined.