| 查看: 1757 | 回复: 11 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
[求助]
求助汉翻英。欢迎指正错误。。高分子材料方面
|
||
|
高分子材料方面求指正改正。。。。 对于HEC，在HEC用量为5g、醚化剂用量为7.5g、碱用量1.85g、在65℃下反应2小时，得到的QHEC取代度最优为0.61，反应效率为64%；对于PVA，在PVA的浓度为5%、醚化剂用量为7g、碱用量2.5g、在65℃下反应6小时，得到的QPVA取代度最优为3.95。 For HEC, the HEC dosage of 5g, etherification agent is 7.5g, alkali 1.85g, at 65 ℃ for 2 hours, the optimal degree of substitution obtained QHEC 0.61, the reaction efficiency was 64%; for the PVA, the PVA concentration of 5%, etherification agent is 7g, alkali 2.5g, at 65 ℃ for 6 hours, get QPVA optimal degree of substitution 3.95. [ Last edited by mlnjut on 2011-5-27 at 20:12 ] |
回复此楼
4楼2011-05-27 16:28:40
小小傻瓜
铁杆木虫 (知名作家)
小小♡流浪♡家
- 应助: 2 (幼儿园)
- 贵宾: 0.141
- 金币: 6362.4
- 散金: 6163
- 红花: 77
- 沙发: 44
- 帖子: 6554
- 在线: 722.9小时
- 虫号: 924082
- 注册: 2009-12-09
- 性别: MM
- 专业: 公共管理
2楼2011-05-27 16:21:47
jacy_cheyn
铁杆木虫 (知名作家)
- 翻译EPI: 6
- 应助: 3 (幼儿园)
- 金币: 8651.2
- 散金: 2005
- 红花: 64
- 沙发: 7
- 帖子: 6863
- 在线: 775.9小时
- 虫号: 1052888
- 注册: 2010-07-06
- 性别: MM
- 专业: 无机纳米化学
★
Mally89(金币+1): 感谢应助！~欢迎常来！~ 2011-05-27 19:41:15
Mally89(金币+1): 感谢应助！~欢迎常来！~ 2011-05-27 19:41:15
|
PVA and HEC are water-soluble. We used 3-chloro-2-hydroxypropyl trimethyl ammonium chloride as etherifying agent to introduce quaternary ammonium groups into the structure of PVA and HEC through quaternization reaction to prouduce quaternized QPVA and QHEC, respectively. The effect of reaction conditions on the degree of substitution and reaction efficiency were studied. For HEC, the HEC dosage of 5g, etherification agent is 7.5g, alkali 1.85g, at 65 ℃ for 2 hours, the optimal degree of substitution obtained QHEC 0.61, the reaction efficiency was 64%.(这句话没有谓语）好好改改~ for the PVA, the PVA concentration of 5%, etherification agent is 7g, alkali 2.5g, at 65 ℃ for 6 hours, get QPVA optimal degree of substitution 3.95. （同上） |
3楼2011-05-27 16:22:46
a349857460
木虫 (著名写手)
- 应助: 1 (幼儿园)
- 金币: 2552.2
- 散金: 1066
- 红花: 13
- 帖子: 1075
- 在线: 142.3小时
- 虫号: 576761
- 注册: 2008-06-21
- 性别: GG
- 专业: 有机分子功能材料化学
5楼2011-05-27 17:17:04
5