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  • The paper deals with the effects of nucleation on photodegradation of isotactic polypropylene. The starting polymer was modified by a specific α-nucleating/clarifying agent Millad 3988 based on 1,3;2,4-bis(3,4-dimethylbenzylidene) sorbitol. Several concentrations were applied. Samples prepared by compression moulding were then exposed to UV-irradiation. Infrared spectroscopy showed that the degradation kinetics is similar for all the samples. Melting and crystallization behaviour of irradiated samples was followed using a differential scanning calorimetry. In all cases UV-irradiation led to decrease of melting/crystallization temperature as a result of polymer degradation. The surface cracking was observed using polarized light microscopy. The network of the surface cracking was significantly different for neat and nucleated samples.
  • The paper deals with the effects of nucleation on photodegradation of isotactic polypropylene. The starting polymer was modified by a specific α-nucleating/clarifying agent Millad 3988 based on 1,3;2,4-bis(3,4-dimethylbenzylidene) sorbitol. Several concentrations were applied. Samples prepared by compression moulding were then exposed to UV-irradiation. Infrared spectroscopy showed that the degradation kinetics is similar for all the samples. Melting and crystallization behaviour of irradiated samples was followed using a differential scanning calorimetry. In all cases UV-irradiation led to decrease of melting/crystallization temperature as a result of polymer degradation. The surface cracking was observed using polarized light microscopy. The network of the surface cracking was significantly different for neat and nucleated samples. (en)
Title
  • Photodegradation of α-nucleated polypropylene
  • Photodegradation of α-nucleated polypropylene (en)
skos:prefLabel
  • Photodegradation of α-nucleated polypropylene
  • Photodegradation of α-nucleated polypropylene (en)
skos:notation
  • RIV/70883521:28110/09:63508199!RIV10-MSM-28110___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GP106/07/P262), Z(MSM7088352101)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 333341
http://linked.open...ai/riv/idVysledku
  • RIV/70883521:28110/09:63508199
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • polypropylene; nucleation; photodegradation; crystallization (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [CEE80C80DDDE]
http://linked.open...v/mistoKonaniAkce
  • Chicago, USA
http://linked.open...i/riv/mistoVydani
  • Brookfield
http://linked.open...i/riv/nazevZdroje
  • 67th Annual Technical Conference of the Society of Plastics Engineers 2009
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Navrátilová, Jana
  • Čermák, Roman
  • Vašek, Leoš
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • Society of Plastics Engineers, Inc.
https://schema.org/isbn
  • 978-1-61567-327-8
http://localhost/t...ganizacniJednotka
  • 28110
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