Vol. 49 No. 12 CONTENTS
Special Issue on
Polymer Material
General Paper

Special Issue on Polymer Material (Vol.49 No.12)

Original Paper (Vol.49 No.12)

Variation of Dynamic Viscoelasticity in Glassy Polymethyl Methacrylate Being Uniaxially Stretched by Creep Stress and Constant Rate Tension

Shin'ya YOSHIOKA, Hiroyuki TACHIBANA and Yukuo NANZAI

1257

Structural Development of PEN/PET Blend Film during Drawing at High Temperature

Syozo MURAKAMI, Elinor L. BEDIA and Shinzo KOHJIYA@

1263

Analysis of Interfacial Delamination for Plastic Film |Basic Study for Mechanism of Void Formation in Stretched PET Film having Incompatible Polymer Particles|

Katsuya ITO, Chisato NONOMURA, Toshitake SUZUKI, and Hideaki ISHIHARA

1270

An Experimental Approach to the Optimum Strength of Uniaxially Thermoformed Polyvinyi-chioride(PVC)Sheet

Akihisa TSUKAMOTO and Yukuo NANZAI

1276

Photopolymerization of Vinylester Resin Having Hydroxymethyl Group

Keiko OHTSUKA, Kiichi HASEGAWA, Akihiro MATSUMOT Hajime KIMURA, Akinori FUKUDA Mizuho YOSHIMOTO and Hideki FUJIWARA

1282

Examination of Condition for Fine Structure of Immiscible Polymer Blends by Step Change of Shear Rate

Yoshiaki TAKAHASHI, Masanao SUZUKI and Ichiro NODA

1286

Viscoelasticity and Morphology of Soft Polycarbonate as a Substitute for Poly(vinyl Chloride)

Tadashi INOUE*, Kunihiro OSAKI*, Hironobu MORISHITA, Hiroyuki TAMURA, and Shuji SAKAMOTO

1291

Sub-Relaxation of Bisphenol A Polycarbonate Studied with Dynamic Birefringence

Tadashi INOUE, Kunihiro OSAKI, Hironobu MORISHITA, Hiroyuki TAMURA, and Shuji SAKAMOTO

1298

Wear Properties and Mechanical Properties of Slightly Cross-linked Ultra-high Molecular Weight Polyethylene crystallized under Uniaxial Compression

Makoto OHTA, Suong-Hyu HYON, Yu-Bong KANG, Masanori OKA, Sadami TSUTSUMI, Syozo MURAKAMI, and Shinzo KOHJIYA

1301


General Paper (Vol.49 No.12)

Original Paper (Vol.49 No.12)

Ultra-Fine Grain Refinement and Tensile Properties of Titanium Alloys Obtained through Protium Treatment

Jun Nakahigashi and Hirofumi Yoshimura

1307

Buckling Strength of Composite Laminated Curved Plates under Compressive Load

Masafumi YAMAMOTO and Hirakazu KASUYA

1312

Venation Pattern of Butterbur Leaf and Its Mechanical Contribution

Hidetoshi KOBAYASHI, Masashi DAIMARUYA and Kaori KURIBAYASHI

1318

Measurement of Fracture Toughness for Brittle Materials under Mixed-Mode Impact Loading Using Center-Notched Disk Specimen

Yoshiaki YAMAUCHI, Motohiro NAKANO, Keizo KISHIDA and Tatsuya OKABE

1324

Influence of Laves Phase Precipitation on Material Degration of W Alloyed 9%Cr Ferritic Steel During Creep

Shin-ichi KOMAZAKI, Shigeo KISHI, Tetsuo SHOJI, Kojiro HIGUCHI and Koshi SUZUKI

1330

Optimization of Testing Conditions for Mixed Gas Corrosion Testing of Electrical Contacts

Rintaro MINAMITANI, Toshio HATSUDA and Akio YASUKAWA

1338

Lecture (Vol.49 No.12)

Ground Improvement and Its Environmental Impacts ‡X:Ground Improvement as Measure for Contaminated Geo-environment

Keiji KOGURE and Takeshi KAWACHI

1344