@article{oai:kpu.repo.nii.ac.jp:00004687,
 author = {佐道, 健 and SADOH, TAKESI},
 journal = {京都府立大學學術報告. 農學, The scientific reports of Kyoto Prefectural University. Agriculture},
 month = {Sep},
 note = {広葉樹材より単離したヘミセルロースの吸湿量を測定し, これに考察を加えた。結果を要約すれば : (1)ヘミセルロースの吸湿等温線は典型的なS字型曲線である。(2)原木の樹種による吸湿量の本質的な差異は認められない。(3)ヘミセルロースの吸湿能力は全関係湿度範囲に亘つて木材の1.8∿2.5倍である。(4)ヘミセルロースとセルロースの吸湿等温線をそれぞれ吸着式を用いて解析し, ヘミセルロースの単位重量当りの1次吸着点および全吸着点の数と, セルロースの非結晶領域の単位重量当りのそれらの数とがほぼ一致することを明らかにした。, In this report the sorption isotherms of water vapour on hemicelluloses isolated from wood of Buna (Fagus crenata BLUME), Shina (Tilia japonica SIMK.), and Makanba (Betula Maximowicziana REGEL) are determined at 16℃. The results are analyzed with sorption equation. The results obtained are summarized as follows : 1) The sortion isotherms for hemicelluloses show typical sigmoid curves as for wood and cellulose, and hysteresis loop is also obsrved (Fig. 2). The shape and the magnitude of the sorption isotherms do not vary greatly from species to species of original wood (Fig. 2 and 4). 2) The amounts of water vapour adsorbed per a unit weight of the hemicelluloses are much greater than those of wood with a whole range of relative humidity, and the adsorption ratio varies between 1.8 and 2.5 (Fig. 3). The hemicelluloses tend to dissolve in saturated vapour. 3) The values of parameters of the equation (1) obtained by sorption isotherms for hemicelluloses are compared with them for wood and cellulose (Table 2). The numbers of grams adsorbed on primary sorption sites per gram of sorbent (v_m) and on total sorption sites per gram of sorbent (nv_m) for hemicelluloses approximate to those numbers per gram of amorphous region of cellulose which are calculated using the values of v_m and nv_m and the ratio of amorphous/crystalline regions of cellulose. It is also found that the hemicellulose have the sorptive surfaces about 2.8 times of wood.},
 pages = {119--123},
 title = {木材ヘミセルロースの吸湿に関する研究(第 2 報) : 吸湿量(林学部門)},
 volume = {12},
 year = {1960},
 yomi = {サドウ, タケシ}
}