s**********8
发帖数: 25265 | 1 【 以下文字转载自 Chemistry 讨论区 】
发信人: skycaptain08 (太尉), 信区: Chemistry
标 题: 请教polymer inherent viscosity 和 温度。 20bz
发信站: BBS 未名空间站 (Fri Sep 7 13:30:24 2012, 美东)
inherenet viscosity 和温度关系是啥？ sample flow time 和 T0 都随温度变， 是
不是就彼此抵消了， 影响不大？
谢谢。 |
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s*********l
发帖数: 19 | 2 LD's case approved. give away coverletter. not free though. need money to
buy costume.
coverletter for NIW 140 (20bz). cover letter for NIW 140 RFE (20bz)
coverletter for EB1b 140 (20bz). coverletter for EB1b140 RFE (20bz)
note: not 20 wb. all case approved after RFE.
biomedical field, 4 paper, 2 review.
if you dont have enough wb, please let me know and I will give you sth for
nothing.
Pls pm me. |
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s*********l
发帖数: 19 | 3 【 以下文字转载自 Immigration 讨论区 】
发信人: smilingagel (smiling agel), 信区: Immigration
标 题: give away coverletter
发信站: BBS 未名空间站 (Thu Oct 21 17:04:07 2010, 美东)
LD's case approved. give away coverletter. not free though. need money to
buy costume.
coverletter for NIW 140 (20bz). cover letter for NIW 140 RFE (20bz)
coverletter for EB1b 140 (20bz). coverletter for EB1b140 RFE (20bz)
note: not 20 wb. all case approved after RFE.
biomedical field, 4 paper, 2 review.
if you dont have enough wb, please let m... 阅读全帖 |
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s*********l
发帖数: 19 | 4 i will mail out the letters during the weekend.
some sent me 20wb rather than 20bz. pls state in your mail you don't have
enough wb. otherwise, I will return your 2bz.
for |
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S*******a
发帖数: 335 | 5 20bz=?wb?
I only have 伪币： 57.40 ... |
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s**t
发帖数: 737 | 6 BSO. peachheart to send 20bz.
re |
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s**********8
发帖数: 25265 | 9 inherenet viscosity 和温度关系是啥？ sample flow time 和 T0 都随温度变， 是
不是就彼此抵消了， 影响不大？
谢谢。 |
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w********h
发帖数: 12367 | 11 open your Polymer Physics book, turn to Page 316.
R^3 changes with T. this also determines if the solvent is theta or good.
of course, in a small range, the difference is not very much. |
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s**********8
发帖数: 25265 | 12 好, 先学习一下. 溶剂是chloroform |
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