《高分子物理习题集?- 百度文库 ر

ƽԷֱָÿɲõʵʽ֣ƽͳ塣

6ʵⶨͬȻ𽺵ֱܷΪ25.840.1353.5053.9054.3KJ.mol-1ԪϩΪ25.08KJ.mol-1,

1¸߷ʱθΪ೤̼ԭ 2Ȼ𽺴ӦڣηԼΪ 7PS120OCʱճΪ1.3443107Pa2sWLF̹160OCʱճȣPSTg=100OC

8ţ壬壬ߣ?д Ӧĺʽ

9ʲôзţͼ?иܶȾϩ̼ȹ۱ϩ;ۼ׻ϩָ߾ָЩ߾ճȶ¶ȵԴЩ߾ճȶԼʵԴ? Ϊʲô?

10ͼʾƽаճȼУճΪ?103Pa.?s?ĸ߷,Ҫʹ10-2m.s-1Ľ໥ƽƣҪƽа2.54310-3mΪ6.45310-4m2

ͼ6-5 ƽаճȼʾͼ

߷ҺʼӦ

һ

1ͣͣ

2

3ճؾZ 4ɢֲֲָָ 5˹ڶάϵܶȲ 6أȣ 7

8֣УߣУ 9ܼ¶ȣҺ 10ճͶ

11ճȣ˹̹ճȶ 12ͻѧ

13ɢ䣻ɢ䣻 14ѧλ

15ٽ繲¶ȣٽ繲¶ȣٽ繲¶ 16ų 17Чֱ 18immͼ

19΢ֲַ΢ֲֲַַ 20ڸ棬 21͸ɫ׷ ж

1ָ߾ǵɢΪ aHDPE bPVC cDNA

2͸ѹõƽΪ

a bճ cؾ 3ɢָdȡֵΪ a1 b>1 c0

4GPCⶨ߾ʱϴͷ¹ϵ alogM=A-B Ve bM=A-BVe clogM=A-BlogVe 5ɢԾۺͳƽĹϵΪ aMn=Nw=N=Mz bMz>Mw>M>Mn cMz>M>Mw>Mn

6߾һ£ܼ¶ȣɦҺʱ

ٴ֮<С֮<С֮. ڴ֮>С֮>С֮ ۴֮=С֮=С֮ ֮<С֮<С֮

7 ǿԵĽᾧ߾ܽ⣬ǼԵĽᾧ߾ֻмȵTmܽ⣨

8ڻصĹ, һ൱С,ֲС( )

9иеڱϺʵ (1) ֲߺ͸ͳƽ a. Mn b.ؾ Mw c.Z Mz d.ճ M

ͼ7-1 ֲ (2) ͸ѹ a.ܼ b.ܼ

ͼ7-2 ͸ѹ (3) GPCУ a֧ϩ b;ϩ

ͼ7-3 GPC

1͸ɫ׷ǰӵģ СͬķӷֿġַԵõ ͣ ȷԼ ݡ

2ڸ߷Һпɣ жϸ߾Һ̬ ӵijߴ硣

3붳ıڣ

4߷ƽĶ֣ѧʽֱǣ ͣ 5͸ѹõǣ ճȷõǣ 6ɢ߾ͳƽĴСΪ ɢ߾ͳƽĴСΪ ⵱Mark-Houwinkָ=1ʱ =-1ʱ 7붳ıǰߵĽΪ ߵĽΪ

8߾ܽһ֣ ͣ ׶Ρ ġ ⣨⣩ 1ܶȲ 2Huggins 3ڶάϵе

4MarkHouwink̵壬, ֵЩй

5ƽ̵ⷽ弰 6߷ӵܽͷʲôͬ

7FloryHugginsģ͵Ļ˼롣 8FloryKrigbaumϡҺۡ

9߷Һʲô뽺ͷҺһȽϣ֤һҺ 10ܶȲβⶨѧԭͷǼԾۺΪʲôܹܽܶȲܼС

11ͨڶۺϵľ۱ϩк95Ĺ壬۵Լ438449֮䣬ѡʵܼԾָӦע۷ϩķϩҵʵܼӷӽṹνͣ

12ϰ߷ۻֲ(M)ĺֲ(M) 13͸ѹⶨķΪʲôʲô 13߾ҺҺΪнϴƫ˵

14GPCⶨֲʵװü۸ݣٳһַļ㷽

15FloryHuggins͸ѹ̺ͷ»巽ֱ̣𻭳- ȺP-V ʾߣ¶ȵĹϵָߵĺּ֣ܼV 16Һճ¶ȵ߶½߷Һճڲܼ¶ȵ߶ߣ⣿ 17ɲܶȲ£ȼ1= 19.8ͪ1 =20.2 PVC2=19.2ԶĦ1ȻͪĦ1ӽPVCĦ2ʵǰ߶PVCܽܲãPVCҺΪʲô

18һۼ׻ϩGPCⶨѡܼдn,Mw[]IJ衣

19FloryHuggins?ͳѧƵ߷ҺĻءSm=- K(N1ln1+N2ln2)ҺءSmi=-K(N1ln1+N2ln2)ĹУкβ

20VanthoffRTc/MϡҺȡʵһŨȵҺʽһƫοУһƫ

21FloryHugginsģʹ߷ҺóҺĻѧλΪ 1=RT[ln(1-2)+(1-1/1)2+122

ԴӸʽƵڶάϵA2=(1/2-1)/V12V1 ܼƫ˷ 22ʲôǦ¶ȣһҺϵ¶ʵⶨģ۸߷ӵҺڸڡڡڦ¶ʱѧΣ߷Һijߴ̬Σ

23߷ҺЩйأ?ԱȽҺĻصıʽкβ𣿻ضԸ߷ӵܽãں