c*********e 发帖数: 119 | 1 我知道测IV可以得到高分子的分子量。它的单位是dL/g。它的物理意义是什么?怎么用最
精练的语言描述出来?我查了很多书都没有找到。
可别告诉我怎么测它。怎么测它我是知道的。:)
Thanks! | c***r 发帖数: 4631 | 2
最
怎么测?
【在 c*********e 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 我知道测IV可以得到高分子的分子量。它的单位是dL/g。它的物理意义是什么?怎么用最 : 精练的语言描述出来?我查了很多书都没有找到。 : 可别告诉我怎么测它。怎么测它我是知道的。:) : Thanks!
| c*********e 发帖数: 119 | 3 Are you kidding or donot really know that?
IV=limit((Nr-1)/c),c->0
or, IV=limit(Nsp/c), c->0
Nr---relative viscosity=N/No, where,N--viscosity of solution, No--viscosity of
pure solvent
Nsp--specific viscosity=Nr-1
用
【在 c***r 的大作中提到】![](/moin_static193/solenoid/img/up.png) : : 最 : 怎么测?
| w********h 发帖数: 12367 | 4 here is one paper for that.
"Equation state for polymer solution"
Polymer, 2002, 43, 3447-3453
or you can check Flory and Fox's original paper in 1951:
JACS, 1951, 73, 1909
最
【在 c*********e 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 我知道测IV可以得到高分子的分子量。它的单位是dL/g。它的物理意义是什么?怎么用最 : 精练的语言描述出来?我查了很多书都没有找到。 : 可别告诉我怎么测它。怎么测它我是知道的。:) : Thanks!
| c*********e 发帖数: 119 | 5 I am reading the paper of "Equation state for polymer solution". It's a little
difficult for me.
用
【在 w********h 的大作中提到】![](/moin_static193/solenoid/img/up.png) : here is one paper for that. : "Equation state for polymer solution" : Polymer, 2002, 43, 3447-3453 : or you can check Flory and Fox's original paper in 1951: : JACS, 1951, 73, 1909 : : 最
| w********h 发帖数: 12367 | 6 in fact, some terms are just originated from theories.
[eta] is also like that.
eta(sp)/C=[eta]+AC+...
when C--->0, you can get one intrinsic value for one polymer in one solvent at
a certain temperature, that's [eta].
[eta] is closely related to Rg.
I happened to see that paper and think it is rather comprehensive.
little
么
【在 c*********e 的大作中提到】![](/moin_static193/solenoid/img/up.png) : I am reading the paper of "Equation state for polymer solution". It's a little : difficult for me. : : 用
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