| 查看: 710 | 回复: 6 | |||
| 当前主题已经存档。 | |||
machunbao0306木虫 (小有名气)
|
[交流]
苯乙烯与丙烯酸十六醇酯共聚合的竞聚率
|
||
|
我最近在做苯乙烯和丙烯酸高碳酯的共聚合，可是查了很多东西也找不到两者的竞聚率，哪位达人知道啊？赐教一下吧！！！ 多谢了，急等！！！ [ Last edited by machunbao0306 on 2009-2-27 at 13:31 ] |
回复此楼» 猜你喜欢
假如你的研究生提出不合理要求
已经有4人回复
-
论文终于录用啦！满足毕业条件了
已经有27人回复
-
所感
已经有3人回复
-
要不要辞职读博？
已经有7人回复
-
不自信的我
已经有11人回复
-
北核录用
已经有3人回复
-
实验室接单子
已经有3人回复
-
磺酰氟产物，毕不了业了！
已经有8人回复
-
求助:我三月中下旬出站，青基依托单位怎么办？
已经有10人回复
-
26申博（荧光探针方向，有机合成）
已经有4人回复
machunbao0306
木虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 2208.8
- 散金: 7
- 红花: 1
- 帖子: 163
- 在线: 44.8小时
- 虫号: 159633
- 注册: 2006-01-07
- 专业: 高分子材料
2楼2007-07-25 18:15:37
machunbao0306
木虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 2208.8
- 散金: 7
- 红花: 1
- 帖子: 163
- 在线: 44.8小时
- 虫号: 159633
- 注册: 2006-01-07
- 专业: 高分子材料
3楼2007-07-26 10:09:13
walter1977
铜虫 (正式写手)
- 应助: 0 (幼儿园)
- 金币: 143.2
- 散金: 5
- 红花: 2
- 帖子: 358
- 在线: 99.7小时
- 虫号: 48481
- 注册: 2004-06-19
- 性别: MM
- 专业: 高分子合成化学
4楼2007-07-26 15:03:25
machunbao0306
木虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 2208.8
- 散金: 7
- 红花: 1
- 帖子: 163
- 在线: 44.8小时
- 虫号: 159633
- 注册: 2006-01-07
- 专业: 高分子材料
5楼2007-07-26 15:39:07
walter1977
铜虫 (正式写手)
- 应助: 0 (幼儿园)
- 金币: 143.2
- 散金: 5
- 红花: 2
- 帖子: 358
- 在线: 99.7小时
- 虫号: 48481
- 注册: 2004-06-19
- 性别: MM
- 专业: 高分子合成化学
sorry,我没哟看清楚
|
Journal of Polymer Science Part A-1: Polymer Chemistry， Volume 8, Issue 11 , Pages 3113 - 3121 Reactivity ratios and copolymerization parameters for copolymers incorporating n-octadecyl acrylate and N-n-octadecylacrylamide Article Reactivity ratios and copolymerization parameters for copolymers incorporating n-octadecyl acrylate and N-n-octadecylacrylamide Edmund F. Jordan Jr., Richard Bennett, Andrea C. Shuman, A. N. Wrigley Eastern Utilization Research and Development Division, Agricultural Research Service, U.S. Department of Agriculture, Philadelphia, Pennsylvania 19118 Abstract Monomer reactivity ratios and copolymerization parameters were determined for n-octadecyl acrylate and N-n-octadecylacrylamide with several monomers not previously reported. Values of Q and e for the long-chain acrylate now agreed more closely than before with the average of values for the lower acrylate homologs. The average polarity parameter for N-n-octadecylacrylamide still showed more electron withdrawal from the double bond (e = 0.42) than was expressed by the average literature value (e = -0.10) for N-n-octylacrylamide. Because penultimate effects were absent in this work, the reason for the discrepancy seems to reside in the copolymer analysis. Reactivity ratios for oleyl and octadecyl acrylate with methyl methacrylate were similar. Coefficients for the relation between overall rates of copolymerization and composition were obtained on some systems by curve fitting with a computer. They generally showed a slight minimum. 同时也参考octadecyl acrylate： from Polymer handbook, 4th Edition, Page II/251 Monomer 1 Monomer2 rx ±95% r2 ±95% Styrene, Acrylate, octadecyl 0.777 0.37 Styrene, Acrylate, octadecyl 0.44 0.18 Styrene, Acrylate, octadecyl 0.79 0.31 Styrene, Acrylate, octadecyl 0.44 0.18 可以看出，可以很好的共聚． [ Last edited by walter1977 on 2007-7-26 at 17:23 ] |
6楼2007-07-26 17:04:33