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Archive of SID ¨íý±ø†ÿ ¬…°…ÿ 89-09¬° ¾~ „è׆¶éõèõ² 솬û …ôèýú ìùíþ ¬° {õèý~ ì»}Û†– ¶éõèõ²ÿ 쥷õŽ|ìþ|ºõð~. ŸõŽ ô †üφ– „ó ìñŒÐ ìùî {ùýú „è׆¶éõèõ² …¶•. ‹±…ÿ {ùýú „è׆¶éõèõ² …² ¨†á …°û ¾ñõ‹±€ ¶ú °ô½ Ńý¼ „‹ß†Ö• ‹† …¶}׆¬û …² „Ž€ ¶õè×õ°üà …¶ý~ 5 ¬°¾~ ô Ń}†¶ýî øý~°ôÞ·ý~ 02 ¬°¾~ ‹±…ÿ ¨±ôž Ńñ}õ²…ðù†ÿ ¨†á …°û ô ¶ú ðõÑ ì†üÐ Ń©• º†ìê ì†üÐ Ń©• Þ±…Ö•€ ì¥éõë 05 ¬°¾~ …{†ðõë ¬° „Ž ‹ú øí±…û ¶õ¬ 4 ¬°¾~ ô ì¥éõèþ ì±ÞŁ …² …¶}ýà …¶ý~€ …¶}õó ô …¶ý~ Þé±ü~°üà ‹±…ÿ èýãñýò ²¬…üþ ü† ¨íý±¶†²ÿ ìõ°¬ …¶}׆¬û Ú±…° â±Ö•. øí¡ñýò€ ¶ú ðõÑ ì±…¤ê °ð㌱ÿ º†ìê |HECPEHEHPEHEC| ‹±…ÿ ¨±ôž èýãñýò ‹†Úýí†ð~û ô …Ö³…ü¼ ¨éõÁ „è׆¶éõèõ² ‹ß†° °Ö•. ¬° Ńý¼ „‹ß†Ö• ‹† Ń}†¶ýî øý~°ôÞ·ý~ ô Ń©• ‹† ì¥éõë Þ±…Ö• ô °ð㌱ÿ |PEHEC ¤~…Þ˜± ìÛ~…° „è׆¶éõèõ² ô ¬° Ńý¼ „‹ß†Ö• ‹† „Ž ô Ń©• ‹† ì¥éõë …¶}ýà …¶ý~€ …¶}õó ô Þé±ü~°üà …¶ý~ ô °ð㌱ÿ PEHEH ¤~…Úê ìÛ~…° „è׆¶éõèõ² ‹~¶• „ì~€ ¬° ¤†èþ Þú ôÂÏý• Æõë ²ðœý±¶éõèõ²ÿ )¬°›ú Ńéýí±º~ó ¶éõèõ²( Î߸ ìÛ†¬ü± „è׆ ¶éõèõ² ‹õ¬.| {ùýú „è׆ ¶éõèõ² …² ¨†á …°û ¾ñõ‹± ý¼ „‹ß†Ö•€ „è׆¶éõèõ²€ ¬°›ú éýí±º~ó€ ¨†á …°û€ ¨íý± | prehydrolysis, alpha cellulose, degree of polymerization, sawdust, pulp Ÿßý~û ô…´û|ø†ÿ Þéý~ÿ * ì·‰õë ì߆{Œ†–€ Ńý†ï|ðㆰ: ri.ca.tu@eezojp Key Words Preparation of Alpha Cellulose from Poplar Sawdust ì¥í~ Ńõ°›õ²ÿ * € ›í»ý~ ì¥í~ÿ °ôºñ~û€ ºù±…ï ðõ…ˆþ|…°¬û| {ù±…ó€ ¬…ð»ã†û {ù±…ó€ ѱ¬ü¸ 3|€ ¬…ð»ß~û Öñþ€ ¾ñ~ôÝ Ń·}þ 911 / 14834 ¬°ü†Ö•: 72/7/28€ Ń¯ü±½: 6/2/38| ‹Çõ° Þéþ ‹ú ¨íý±ø†üþ Þú ìÛ~…° ²ü†¬ÿ „è׆ ¶éõèõ²)09 {† 89 ¬°¾~( ¬…°ð~ ô ìÛ~…° øíþ|¶éõèõ² )Ńñ}õ²…ó( ô èýãñýò „ðù† ¨ýéþ Þî ô ìõ…¬ ìÏ~ðþ ô …¶}©±…›þ „ðù† ðý³ ð†Ÿý³ …¶• ô ¬° Îýò ¤†ë ¬…°…ÿ º×†Öý• ²ü†¬ ô {õ²üÐ ô²ó ìõèßõèþ )Æõë ²ðœý± ¶éõèõ²ÿ( üßñõ…¨•|…ð~€ ¨íý±ø†ÿ| |„è׆ ¶éõèõ² ü† ¨íý± ¤ê ºõð~û ü† ¶éõèõ² ºýíý†üþ ìþ|âõüñ~. ¬°›ú Ńéýí±º~ó …üò ¨íý±ø† Þí}± …² 051 ðý·• ô ¬° ì¥éõë ¶~üî øý~°ôÞ·ý~ 5/71 ¬°¾~ ¤ê ðíþ|ºõð~ ]1|[. | ìùí}±üò Þ†°‹±¬ „è׆¶éõèõ² ¬° ¶†¨• ì»}Û†– ¶éõèõ²ÿ …¶•. …² „𜆠Þú ìÛ~ìú ìœéú Îéõï ô {ßñõèõ´ÿ éýí±€ ¶†ë ø×~øî€ ºí†°û 3€ ¾×¥ú 261-751€ 3831 5523-6101 : NSSI Archive of SID www.SID.ir

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    1. Kuckurek M., Pulp and Paper Manufacture, 4, Tappi, Atlanta,Georgia, USA, 324-344, 1989.

    2. Fengel D. and Wegener R., Wood: Chemistry, Ultrastructure,

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    3. Nevell T.P. and Zeronian S.H., Cellulose Chemistry and its

    Application, Ellis Horwood, Chichester, West Sussex, UK, 17-

    21, 1987.

    4. Krassig H.A., Cellulose: Structure, Accessibility and Reaction,

    Gordon and Breoch Sicence, Switzerland, 68-70, 1993.

    5. Din Woody J., Timber, its Nature and Behaviour, Van Nostrand

    Reinhold, NewYork, 15-16, 1979.

    6. Marra A., Technology of Wood Bonding, Van Nostrand Rein-hold, NewYork, 5-11, 1992.

    7. Woodings C., Regenerated Cellulose Fibers, Woodhead, Cam-

    bridge England, 22-28, 2001.

    Archive of SID

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