Explanipedia

マレイン酸の鉛塩に関する研究（第5報）: ポリ塩化ビニールの安定剤としての三塩基性マレイン酸鉛について Open

一男物延, 正盛山田, Kazuo Monobe, Masamori Yamada, Satomi Komori , et al. · 2012

The thermal decomposition of polyvinylchloride（P . V . C）in the presence of tribasic lead maleate（PbM3PbO）as stabilizer was studied in comparison with various commercial stabilizers systems．The stabilizers can be classified from the decomp…

マレイン酸共重合物の電気化学的性質に関する研究第2報高イオン強度における電圧滴定 Open

一男物延, Kazuo Monobe · 2012

マレイン酸共重合物の電気化学的性質に関する研究第1報低イオン強度における電圧滴定 Open

一男物延, Kazuo Monobe · 2012

In this series， the polydibasic properties of some copolymers of maleic acid are studied\n\tfrom the viewpoint of the neighboring interaction. In the present paper， the potentiometric\n\ttitrations of two copolymers， maleic acid-vinyl acet…

Viscoelastic Properties of Poly (vinylalcohol) Solutions in Dimethylsulfoxide Open

Tooru Sanefuji, Hiroshi Narukawa, Koichi Kajitani, Kaoru SIMAMURA, Fumiyoshi Yokoyama , et al. · 1989

Some rheological properties were investigated for poly (vinyl alcohols) in dimethyl-sulfoxide solutions over a wide range of molecular weight and concentration. Basic properties of the storage modulus G′(ω) and the loss modulus G″(ω) were …

Formation of nylon 11 crystals by solid state polycondensation of 11-aminoundecanoic acid under high pressure. Open

Tokimitsu Ikawa, Wataru Maeda, Satoshi Date, Kaoru Shimamura, Fumiyoshi Yokoyama , et al. · 1988

Single crystal-like nylon 11 were prepared by solid state polycondensation of 11-aminoundecanoic acid (11-AUA) under high pressure. Resultant nylon 11 crystals kept the original shape of 11-aminoundecanoic acid crystals unchanged. Effects …

Studies on morphology control of polymer crystals during polymerization. 1 Preparation of poly(p-oxybenzoyl) whiskers. Open

Yasuo Kato, Seiji Endo, Kunio Kimura, Yuhiko Yamashita, Hiroshi Tsugita , et al. · 1987

p-アシロキシ安息香酸を液状パラフィンまたはサームS800 (R) 中で重合させることにより, 針状のポリ (p-オキシベンゾイル) 結晶を得た. 重合は静止状態330℃で360分間行った. 得られた針状結晶の密度は, 1.50~1.51g/cm3で単位格子の大きさから求めた結晶密度1.52g/cm3に非常に近い値を示した. また, X線粉末図形では非晶部に基づくピークは認められなかった. 更に, 他の形態を持つ結晶と比較して高い転移温度及び分解温度を示した.これらの事実か…

Studies on morphology control of polymer crystals during polymerization. II Formation mechanism of poly(p-oxybenzoyl) whiskers. Open

Yuhiko Yamashita, Yasuo Kato, Seiji Endo, Kunio Kimura, Hiroshi Tsugita , et al. · 1987

前報で得たPOB針状結晶が電子線回折図などから高結晶性の延伸鎖型結晶であることを明らかにした. そして, このウイスカの生成機構は, 重合初期生成物の形態観察から次のようなものであると考えた. 溶媒中での縮合によりある重合度に達したオリゴマー分子がラメラ晶として析出する. さらにオリゴマー分子がラメラ晶上に発生したらせん転位に基づいてスパイラル成長で結晶化し, ラメラが高度に積層する. 引き続いて後重合が起こり, ラメラ関のオリゴマー分子が縮合し延伸鎖型結晶となる. また,…

SOLID STATE POLYCONDENSATION OF 12-AMINODODECANOIC ACID TO NYLON 12 UNDER HIGH PRESSURE Open

Tokimitsu Ikawa, Kaoru Shimamura, Fumiyoshi Yokoyama, Kazuo Monobe, Yoshikazu Mori , et al. · 1986

Polymerization of 12-aminododecanoic acid (12-ADA) to Nylon 12 was carried out by the solid state polycondensation under high pressure. The original crystal shape of the 12-ADA is kept unchanged after the polymerization. In addition, the r…

INTERPRETATION OF THE TRANS FRACTION AND FINE STRUCTURE OF MELT-QUENCHED POLY (ETHYLENE TEREPHTHALATE) Open

Yuhiko Yamashita, Kazuo Monobe · 1981

In a preceding paper we determined the absolute trans fraction of CH2-CH2 bonds in melt-quenched poly (ethylene terephthalate) (PET) by means of infrared spectroscopy. The obtained fraction was an unexpectedly small value, 0.2, which is in…

EXPERIMENTAL EVALUATION OF THE TRANS FRACTION IN CH<sub>2</sub>-CH<sub>2</sub> BONDS OF MELT-QUENCHED POLY (ETHYLENE TEREPHTHALATE) Open

Yuhiko Yamashita, Kazuo Monobe · 1981

In a previous paper we speculated that the molecular conformation of poly (ethylene terephthalate) (PET) quenched from the melt is not in random coil state but in frozen metastable state which is easily transformed into the stable crystall…

ON THE COLD CRYSTALLIZATION OF POLY (ETHYLENE TEREPHTHALATE) FROM ITS GLASSY STATE Open

Yuhiko Yamashita, Kazuo Monobe · 1981

In this paper we studied the molecular mechanism of the cold crystallization upon heating quenched Poly(ethylene terephthalate) (PET). From morphological observations we found spherulites in the samples annealed at lower temperature althou…

Polymer Crystals Formed from Solution under Shearing-Strees Open

Kazuo Monobe, Yasuo Fujiwara, Yuhiko Yamashita · 1970

ポリエチレン, アイソタクチツクポリプロピレン, アイソタクチックポリブテン-1, ポリオキシメチレン, ポリビニルアルコールについて, 剪断応力下でそれぞれの溶液から繊維状結晶を作り, その構造と物理的性質についての研究を行なった。特にその微細組織については, (1) 繊維の中心にある延伸鎖結晶の存在, (2) それに周期的に付着している折りたたみ鎖結晶部分にもとつく長周期構造, について検討した。前者については電子顕微鏡下の明視野像ならびに暗視野像を中心にして検討した。…

On the Optical Behavior of Polyethylene Spherulites Open

Kiyoshi Suefusa, Kazuo Monobe · 1967

Polyethylene was crytallized from the molten film under temperature gradient. As a result, the optically positive spherulites were observed, though only the negative spherulites had been observed previOusly in polyethylene. When the radial…

Preparation of Polymer Single Crystals Open

Kazuo Monobe · 1965

マレイン酸共重合物の電気化学的性質に関する研究第5報粘度的挙動について Open

一男物延, Kazuo Monobe · 1962

マレイン酸共重合物の電気化学的性質に関する研究第6報電導度的挙動について Open

一男物延, Kazuo Monobe · 1962

Conductometric behaviors of the copolymers of maleic acid with either vinyl acetate or\n\tstyrene were studied The polydibasic characteristic of the titration curves were discussed\n\twith the analytical aspects.\n\tOn the other hand， the …

マレイン酸共重合物の電気化学的性質に関する研究第3報 Comonomerの種類による滴定挙動の差異について Open

一男物延, Kazuo Monobe · 1962

The sharp difference of titration behaviors between maleic acid-vinyl acetate copolymer\n\tand maleic acid-styrene copolymer was briefly considered according to the Kirkwood model\n\tfor organic ions\n\tOn the other hand，the electrostatic …

マレイン酸共重合物の電気化学的性質に関する研究第4報キレート生成定数の比較について Open

一男物延, Kazuo Monobe · 1962

The apparent chelate formation constants of alkaline earth metal ions，Ba and Ca，with\n\tmaleic acid-vinyl acetate and maleic acid-styrene copolymers were evaluated according to\n\tMorawetz's method and the comparison between two copolymers…

Studies on the electrochemical properties of copolymers of maleic acid, VI : conductometric behaviors Open

Kazuo Monobe · 1961

Conductometric behaviors of the copolymers of maleic acid with either vinyl acetate or styrene were studied. The polydibasic characteristic of the titration curves were discussed with the analytical aspects. On the other hand, the equivale…

Studies on the electrochemical properties of copolymers of maleic acid, II : potentiometric titration at high ionic strength Open

Kazuo Monobe · 1960

The potentiometric titrations of two copolymers, maleic acid-vinyl acetate and malefic acid-styrene copolymers, were carried out at high ionic strength. The dissociation constants, pK_1^° and pK_2^°, in which the influence of polyion poten…

Studies on the electrochemical properties of copolymers of maleic acid, IV : comparison of chelate formation constant Open

Kazuo Monobe · 1960

The apparent chelate formation constants of alkaline earth metal ions, Ba and Ca, with maleic acid-vinyl acetate and maleic acid-styrene copolymers were evaluated according to Morawetz's method and the comparison between two copolymers was…

マレイン酸の鉛塩に関する研究（第4報） : 塩基性マレイン酸鉛と塩化アンモン水溶液との反応に就て Open

一男物延, 正盛山田, Kazuo Monobe, Masamori Yamada · 1956

The reaction of ammonium chloride solution on tribasic lead maleate and the reaction in the presence of maleic acid were studied. In both cases the precipitation products have each constant composition but crystallization products from sol…

マレイン酸の鉛塩に関する研究（第3報） : 塩基性マレイン酸鉛の生成並びに稀塩酸との反応に就て Open

一男物延, 正盛山田, Kazuo Monobe, Masamori Yamada · 1956

Three types of lead salts of maleic acid are known. They are acid, normal and basic salt. This report is concerned with a basic salt. Tribasic lead maleate was obtained and ascertained by reacting normal lead maleate with aqueous solution …

マレイン酸の鉛塩に関する研究(第2報):酸性マレイン酸鉛の性質に就て Open

一夫物延, 正盛山田, Kazuo Monobe, Masamori Yamada · 1955

マレイン酸の鉛塩に関する研究(第1報) : マレイン酸鉛及び酸性マレイン酸鉛の製法に就て Open

一夫物延, 正盛山田, Kazuo Monobe, Masamori Yamada · 1954

1. The authors tried to obtain lead salts of maleic acid from lead oxide and aqueous solution of maleic acid through a method quite different from those found in the literature.\n2. A new acid lead maleate，not found in the literature，was o…

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