@article{oai:yamagata.repo.nii.ac.jp:00000538,
 author = {Takahashi,  Naomichi and Suzuki,  Fumio and Maeda,  Akira and Onozato,  Kenji},
 issue = {2},
 journal = {山形大学紀要.工学},
 month = {Jan},
 note = {論文(Article), Abstract　For the examination of the amorphous structure of solid linear polymer by chemical technique, experiments by deuteration and others were made on variously annealed nylon 4 membranes. The membranes, wet annealed by steam and dry annealed in N_2 atmosphere, were deuterated with D_2O vapor at various temperatures of 25-135℃, respectively, and the amount of the cohesive structure which was relaxed and deuterated at the deuteration temperature was measured by IR spectrophotometry on ν_ band, and the cohesive energy(ΔF_i) of the deuterated structure was calculated from deuteration temperature (T_i) by ΔF_i= 2.92T_i + 625 which was introduced on the base of Flory's theory of melting point depression under the existence of diluent, and (1) the lateral order distributions of these samples were estimated more quantitatively than ever. (2) The cohesive energy of nylon 4 showed the values of about 1.5-1.8 Kcal/mol and they were between those of nylon 3 and nylon 6 in order of C-numbers of their structural units. (3) By the examination of the deuteration curves and by some supplementary experiments, the mechanism of annealing effect on the amorphous structure of the nylon 4 membranes was clarified by the analysis of the rearrangement of the molecular segments in the amorphous region. (4) The fine structure of the membranes was supposed to be constructed with two types of domains, in one of which molecular segments were rich and had some order and the change of lateral order occurred, in the other, segments were poor and had no order and so they were insensitive to the annealing.　　その非晶構造を化学的手段で調べるため，種々の条件で熱処理したナイロン4皮膜について重水素化法を主とした実験を行なった。水蒸気による湿熱処理，N_2ガス中での乾熱処理をほどこした試料皮膜を25～135℃の種々の温度下で重水蒸気によって重水素化した。 各重水素化温度で緩和され重水素化された凝集領域量をIR法によってν_NHバンドの吸光度変化から測定した。重水素化された領域の凝集エネルギー（ΔF_i）を溶媒存在による融点降下のFloryの理論に基いて導かれた式，ΔF_i = 2.92T_i + 625，を用いて重水素化温度（T_i）から計算した。 その結果(1)これらナイロン4試料のラテラルオーダー(LO)分布を従来の例よりもより定量的に測定した。(2)ナイロン4の凝集エネルギーはほぼ1.5～1.8 Kcal/molで，ナイロン3とナイロソ6の中間の値を示し，脂肪族ナイロンの炭素数に対応することを認めた。(3)各試料の重水素化曲線の解析および他の補助的実験によって非晶領域中の分子鎖セグメントの熱処理による動向を解析し，熱処理機構の解明に寄与した。(4)これら皮膜の微細構造は2種の構造の領域から成る。すなわち，セグメントが濃密でしかも若干のLOをもち，熱処理などによってLOの変化がそこで起る領域と，セグメントの存在はより希薄であり，しかもLOを持たず熱処理などに影響されない領域とである。},
 pages = {171--189},
 title = {A Study on Fine Structure of Nylon 4 by Deuteration Method},
 volume = {17},
 year = {1983}
}