b****g
发帖数: 54 | 1 现在的反应体系中要加入引发剂A，但体系中存在的少量的水可能成为第二种引发剂
而且水要比我加入的引发剂更容易引发聚合
有什么样的方法能够控制反应更多的由我加入的引发剂引发
而尽量减少水引发的反应？
除了脱水之外，引发剂和单体的添加顺序会不会有影响？
那位高人能抽空给俺指点一下，谢谢！ | c*****e
发帖数: 238 | 2 I'm no expert on this.
But if you try to minimize water in the system, then even if that's better
initiator, still, the initiator you put in should play the main role. I think
you can always figure out how much reaction is triggered by the water, what
kind of control you want to take over the reaction?
【在 b****g 的大作中提到】
: 现在的反应体系中要加入引发剂A，但体系中存在的少量的水可能成为第二种引发剂
: 而且水要比我加入的引发剂更容易引发聚合
: 有什么样的方法能够控制反应更多的由我加入的引发剂引发
: 而尽量减少水引发的反应？
: 除了脱水之外，引发剂和单体的添加顺序会不会有影响？
: 那位高人能抽空给俺指点一下，谢谢！
| b****g
发帖数: 54 | 3 I used dioxane as solvent, which contains some water.
Dioxane was dired over Na/Benzophenone
Catalyst may also contain moistrue, and was dried in
vacuum oven for 96 hours
I carried out a control experiment without adding my initiator
but there still some polymerization happened.
【在 c*****e 的大作中提到】
: I'm no expert on this.
: But if you try to minimize water in the system, then even if that's better
: initiator, still, the initiator you put in should play the main role. I think
: you can always figure out how much reaction is triggered by the water, what
: kind of control you want to take over the reaction?
| c*****e
发帖数: 238 | 4 More details, where does the water come from?
【在 b****g 的大作中提到】
: 现在的反应体系中要加入引发剂A，但体系中存在的少量的水可能成为第二种引发剂
: 而且水要比我加入的引发剂更容易引发聚合
: 有什么样的方法能够控制反应更多的由我加入的引发剂引发
: 而尽量减少水引发的反应？
: 除了脱水之外，引发剂和单体的添加顺序会不会有影响？
: 那位高人能抽空给俺指点一下，谢谢！
| b****g
发帖数: 54 | 5 many thanks
think
【在 c*****e 的大作中提到】
: I'm no expert on this.
: But if you try to minimize water in the system, then even if that's better
: initiator, still, the initiator you put in should play the main role. I think
: you can always figure out how much reaction is triggered by the water, what
: kind of control you want to take over the reaction?
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