w********h
发帖数: 12367 | 1 等待着更新知识。
最近将高分子静态和动态parameter进行一个完整的总结，
和实验结果对比表明，
我们对于高分子在homopolymer mixture的尺寸scaling的掌握还远远不够。。。
理论家们，
你们有事情做了。。。。呵呵。。。。 | c*****e
发帖数: 238 | 2 which scaling?
looking forward to...
【在 w********h 的大作中提到】
: 等待着更新知识。
: 最近将高分子静态和动态parameter进行一个完整的总结，
: 和实验结果对比表明，
: 我们对于高分子在homopolymer mixture的尺寸scaling的掌握还远远不够。。。
: 理论家们，
: 你们有事情做了。。。。呵呵。。。。
| w********h
发帖数: 12367 | 3 I will send you one copy when we submit it.
The experimental results are inconsistent with theoretical prediction.
of course, those scalings are too simple.
Static parameters:
end-to-end distance R, correlation length, and tube diameter.
Dynamic parameters:
relaxation time Tau;
diffusion coefficient D;
modulous G;
viscosity eta.
Scalings:
concentration dependence,
long chain length dependence,
short chain length depedence.
Question:
Excluded volume effect vanishes at which point? Practically...
【在 c*****e 的大作中提到】
: which scaling?
: looking forward to...
| c*****e
发帖数: 238 | 4 It seems that entanglement is an issue here, either concentration or chain
length dependence has to do with that.
I must say this problem is really hard.
Anyway, looking forward to your paper...
【在 w********h 的大作中提到】
: I will send you one copy when we submit it.
: The experimental results are inconsistent with theoretical prediction.
: of course, those scalings are too simple.
: Static parameters:
: end-to-end distance R, correlation length, and tube diameter.
: Dynamic parameters:
: relaxation time Tau;
: diffusion coefficient D;
: modulous G;
: viscosity eta.
| w********h
发帖数: 12367 | 5 now I tend to look at Packing Length to solve the problem.
although Richter has the best neutron machine,
I doubt they develops theory or models themselves.
really a pity.
initially I wanted to attend his meeting with students now,
seems no need leh after his talk...
【在 c*****e 的大作中提到】
: It seems that entanglement is an issue here, either concentration or chain
: length dependence has to do with that.
: I must say this problem is really hard.
: Anyway, looking forward to your paper...
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