Deformation mechanism of high-density polyethylene probed by in situ Raman spectroscopy
Takumitsu Kida, Yusuke Hiejima, Koh-hei Nitta
Polymer, 58, 88-95, 2015 here

Stress-strain behavior of cold-drawn isotactic polypropylene
subjected to various drawn histories
Hitomi Nomura, Koh-hei Nitta
Polymer, 55, 6614-6622, 2014 here

Self-consistent field model simulations for statistics of
amorphous polymer chains in crystalline lamellar structure
Takashi Uneyama, Takafumi Miyata, Koh-hei Nitta
Journal of Chemical Physics, 141, 164906, 2014 here

In situ near-infrared spectroscopic studies of the structural changes
in polyethylene during tensile deformation
Masami Mizushima, Takanobu Kawamura, Kenji Takahashi, Koh-hei Nitta
Polymer Testing, 38, 81-86, 2014 here

On ductile fracture mechanism under tension in semicrystalline polymers
Koh-hei Nitta, Chunyao Li
Nihon Reoroji Gakkaishi, 41, 167-172, 2013 here

Influence of thermo-degradation on the crystallization kinetics of
isotactic polypropylene with a β-nucleating agent
Shengying Qian, Toshio Igarashi, Koh-hei Nitta
Journal of Macromolecular Science, Part B: Physics, 52, 48-64, 2013 here

Characterization of molecular orientation under tensile deformation by near infrared spectroscopy Masami Mizushima, Takanobu Kawamura, Kenji Takahashi, Koh-hei Nitta
E-Polymers, 068, 2012

Molecular orientation behavior of isotactic polypropylene films
under uniaxial and biaxial deformation at elevated temperatures
Shingo Yoshida, Takayuki Sawada, Takanobu Kawamura, Koh-hei Nitta
International Polymer Processing, 27, 237-244, 2012 here

Application of catastrophe theory to neck initiation of metallocene-catalyzed high-density polyethylene
Koh-hei Nitta, Mizue Kuriyagawa
Polymer Journal, 44, 245-251, 2012 here

In situ near-infrared spectroscopic studies of the structural changes of polyethylene during melting Masami Mizushima, Takanobu Kawamura, Kenji Takahashi, Koh-hei Nitta
Polymer Journal, 44, 162-166, 2012 here

Semicrystalline structure and mechanical properties of polyolefin-based materials
Mizue Kuriyagawa, Koh-hei Nitta
Advanced Materials Research, 441, 713-716, 2012 here

A novel phenolic rigid organic filler/isotactic polypropylene blend
Dongming Qi, Rui Zhang, Jie Xu, Xingcong Shen, Koh-hei Nitta
Advanced Materials Research, 441, 536-539, 2012 here

Investigation of a rheo-optical method for determining the in-situ molecular orientation behavior
in stretching films under biaxial deformation
Shingo Yoshida, Takayuki Sawada, Takanobu Kawamura, Koh-hei Nitta
Polymer Testing, 30, 893-898, 2011 here

Thermal degradation behavior of polyoropylene in the melt state: Molecular weight distribution changes
and chain scission mechanism
Shengying Qian, Toshio Igarashi, Koh-hei Nitta
Polymer Bulletin, 67, 1661-1670, 2011 here

Structural explanation on natural draw ratio of metallocene-catalyzed high density polyethylene
Mizue Kuriyagawa, Koh-hei Nitta
Polymer, 52, 3469-3477, 2011 here

Effects of addition of hindered phenol compounds to a segmented polyurethane with shape memory on mechanical yielding
Mizue Kuriyagawa, Takanobu Kawamura, Shunichi Hayashi, Koh-hei Nitta
Journal of Materials Science, 46, 1264-1271, 2011 here

Molecular orientation behavior of mesomorphic isotactic polypropylene
under uniaxial and biaxial deformation
Shingo Yoshida, Kazuomi Ishii, Takanobu Kawamura, Koh-hei Nitta
Polymer Engineering and Science, 51, 225-231, 2011 here