The melt-crystallization behaviors of poly (l-lactic acid) (PLLA) in the presence of the external DC electric fields are reported. The real-time monitoring of the melt-crystallizations were provided with polarizing optical microscope at the isothermal crystallization temperatures Tc = 120 – 150 °C under the voltages VDC = 0–200 V. The crystal nucleation took place selectively at the edge of the anodes, and the highly oriented crystals grew in the direction perpendicular to the anode. The nucleation rate in the presence of the fields was much faster than that on the spherulite growth in the absence of the fields. The nucleation rate was also faster as the applied voltages were higher. On the other hand, the crystal growth rate was almost independent of the magnitude of the applied voltage value. The present experimental results indicated that the applications of the electric fields were helpful for accelerating the crystal nucleation rate of the PLLA.
Polymer – Elsevier
Published: Feb 10, 2016
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera