w********h 发帖数: 12367 | 1 de Gennes Discussion Conference
February, 2-5, 2009
The French Group of Rheology, under the auspices of the European
Society of Rheology, organizes the de Gennes Discussion Conference,
entitled:
From reptation to glassy materials: de Gennes pionneering work in
rheology and recent developments
It will be held in February, 2-5, 2009, in Chamonix (France), a nice
city nested in the Alps, at the foot of Mont Blanc.
This Conference aims at gathering a wide community involved in the
fields of rheology |
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c******a 发帖数: 168 | 2 今晨才知道de Gennes死了,五月份的事情。
Pierre-Gilles de Gennes是我们这个领域唯一一个诺贝尔奖获得者,是个天才,一生跨越甚至创建了好几个研究领域。我曾在开会的时候见过他,讲起问题来天马行空。别人用powerpoint,他还只会用手写的幻灯片,而且字迹潦草,可是表达清晰,思想充满灵感的火光,能把十万八千里外的不同事物用简洁的物理思想连接到一起。听这种人讲话,不由得要燃烧起对科学的热情,哪怕很短暂。
我无缘认识他,但曾经每日从他房前经过,那时我在Orsay山上上班,那里的实验室是他事业的起点,而他刚刚从Collège de France退休。他的房子就在火车站外,出了乡村小站,右手第一栋,白色的两层小楼,在法国算是豪宅了,其实很简朴,也没有阳台花园,我在美国刚工作两年的同学买的房子也比它跋扈。我去Collège de France跟Claudine Williams谈工作,坐在他退休后空出的大办公桌后,想象这个天才是怎么工作的。桌子很大很旧,棕色的木头漆都磨掉了,上面没有电脑,桌后是一张同样破旧的绿色皮制转椅,de Gennes 明显是个旧式的科学家。三年后 |
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w********h 发帖数: 12367 | 3 http://www.nobel.se/physics/educational/poster/1991/master.html
The master of analogies
Pierre-Gilles de Gennes has shown how simple analogies can be used to
understand complex systems such as liquid crystals and polymers. These
materials are at the same time solid and liquid-like. On the molecular level
they are both ordered and disordered. He explained the properties of the
materials from what is known about order-disorder phase transitions in simpler
systems.
De Gennes discovered that alt |
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w********h 发帖数: 12367 | 4 Pierre-Gilles de Gennes
P. G. de Gennes was born in Paris, France, in 1932. He majored from the
École Normale in 1955. From 1955 to 1959, he was a research engineer at
the Atomic Energy Center (Saclay), working mainly on neutron scattering and
magnetism, with advice from A. Herpin, A. Abragam and J. Friedel (PhD 1957).
During 1959 he was a postdoctoral visitor with C. Kittel at Berkeley, and then
served for 27 months in the French Navy. In 1961, he became assistant
professor in Orsay and |
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w********h 发帖数: 12367 | 5 【 以下文字转载自 Macromolecules 讨论区,原文如下 】
发信人: wonderlich (左岸,遁去), 信区: Macromolecules
标 题: de Gennes' posters
发信站: The unknown SPACE (Sun Jul 14 02:10:02 2002) WWW-POST
http://www.nobel.se/physics/educational/poster/1991/master.html
The master of analogies
Pierre-Gilles de Gennes has shown how simple analogies can be used to
understand complex systems such as liquid crystals and polymers. These
materials are at the same time solid and liquid-like. On the molecular level
they are both ordered and diso |
|
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b*o 发帖数: 47 | 7 de Gennes and his co-workers have made significant contributions to polymer
adhesion. I remember that he had a book titled "Soft Interface", which is a
good introduction of his ideas.
在 boss (养蜂人@城市) 的大作中提到: 】
最有趣得是他首先恭维了大家(这个lecture是chemistry的,所以大部分人也是chemistry
意 |
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b*o 发帖数: 47 | 8
Personally, I think de Genne's Introduction to Polymer Dynamics
is only a collection of lectures, not a classical polymer physics book.
Also, personally and no offense, I think anyone who would like to
become a polymer physict should read and understand de Gennes'
Scaling book and Doi&Edwards' Dynamic book (not only for
people interested in polymer dynamic). The Russian guys' book
is a very good reference summarizing theories from schools of Flory, de
Gennes,
Edwards and the russsian guys.
A cl |
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w********h 发帖数: 12367 | 9 I recall P. G. de Gennes' Dirac Lecture: Soft Interfaces,
it discusses something related.
if you cannot get it on the web,
here are some references related to this issue if I don't remember wrong.
F. Brochard-Wyart, P. G. de Gennes,
Adv. Colloid Interface Sci. 1992, 39, 1;
R. G. Cox,
J. Fluid Mech. 1966, 168, 169.
P. G. de Gennes, X. Hua, et al.
J. Fluid Mech. 1990, 212, 55.
distribution |
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w********h 发帖数: 12367 | 10 来自主题: Macromolecules版 - 牛人们 最近在看de Gennes和Steven Chu的文章,
他们对polymer physics尤其是polymer dynamics做的贡献真是无比深远,
de Gennes在理论上是个绝伦的天才,
Steven在single chain的工作上对于polymer dynamics的研究开创了新局面。
他在采访的时候说:
平时我们研究高分子都是average properties,
就象是在动物园里算动物平均有几条腿,
最后统计出是2.7,
然后在拿出个理论出为什么是2.7,
而现在他们做的是要把一个个动物拿出来得到确切的整数的腿数。
做过polymer dynamics的牛人们还有:
Doi,
Edwards,
Lodge,
Rubinstein,
Tirrel,
Viovy,
Colby,
Kramer,
Green,
Composto,
Milner,
McLeish,
Graessley,
Marrucci,
Klein,
Watanabe,
de Clousieus,
... |
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c*****e 发帖数: 238 | 11 至少不应该不提path integral.
de Gennes的screening length是field theory和scaling的结果.
那个的根本来源是renormalization,自然少不了path integral.
Flory Huggins作为非常coarse的mean field limit
借助field theory, de Gennes才能计算出\nu, 虽然结果与flory的结果相近,
但内涵差的多. |
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w********h 发帖数: 12367 | 12 dilute regime: C
entangled regime: C>Ce
both are almost clear in theory.
between C* and Ce, it is called semi-dilute.
de Gennes gave some prediction for this regime.
and many questions are undone in this regime.
hehe...later you will see my another paper on this subject,
although our interests are in dilute regime and entangled regime.
if you want to know further,
refer to de Gennes' books, or the new book of Rubinstein and Colby's.
a
but
chain. |
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c*********e 发帖数: 119 | 13 在reptation model中的那根管子的直径和温度有关系吗?
我正在自学polymer dynamics.除了下面几本书外,还有什么关于polymer dynamics的较
好的教科书? 你能不能给我推荐几本?
Introduction to polymer dynamics----De Gennes
Scaling concepts in polymer physics----De Gennes
The physics of polymers---Strobl
The theory of polymer dynamics----Doi and Edwards
多谢! |
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b*o 发帖数: 47 | 14 Thanks for bring up this. I had the same question when I was studying polymer
physics. I can understand that polymers in melt will have smaller R than that
in good solvent (due to the space packing entropy as explained in de Gennes'
book), but I could not understand why it should have exactly the same size as
the non-self-avoiding random walk. I have not seen any proof to say why the
packing entropy will lead to exactly the same size. The famous baclk/white
chain figure in de Gennes' book sounds |
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w********h 发帖数: 12367 | 15 在看de Gennes的scaling concept,
突然想到人也是可以按照时间的尺度来划分的。
3000年出现一次的,比如耶稣;
300年出现一次的,比如爱因斯坦,牛顿;
30年出现一次的,比如普朗克等等仅次于爱因斯坦的著名科学家,Flory和de Gennes应该
算这一类里面;
3年出现一次的,除上面两类之外的数目众多的Nobel奖得主中货真价实者;
3个月出现一次的,杰出faculty and researcher without Nobel prize or with but
not so important;
3天出现一次的,一般的faculty and researcher.
3小时出现一次的,博士学位拥有者或具有博士学位水平的博士candidate.
3分钟出现一次的,广泛受到大学或大学教育以上并且与之相符的人。
3秒钟出现一次的,除以上的人之外的金字塔基座。
Note:30年或以上出现一次的,后天奋斗是没用的,呵呵。 |
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w********h 发帖数: 12367 | 16 有些时空交错的感觉,
当年做polymer dynamics的时候看了一些他和朱棣文的文章,
开会的时候也和Charles Schroeder以及Teixeira交谈过。。。
他讲的也就是那些single molecule flow dynamics,
一别三年,如今我已经早已不感兴趣。。。。
似乎跟鲍哲南合作做一些中间是conductive polymer block两端是
DNA block的东东,然后放在流场里拉伸。。。。
据说是用来研究单分子导电机理。。。。
提到de Gennes同学的一个polymer extension vs flow strength的一个
奇怪的相图,就那个相图,GG Fuller, Gary Leal学派支持,
而Bird一派反对,后来还是对的。
看来大湖区学派跟加州+欧洲学派还是泾渭分明,
显得土多了。。。
Charles Schroeder已经到UIUC做faculty,
de Gennes今年挂掉了,
朱棣文从斯坦福到伯克利当领导去了,
Shaqfeh还在讲那些东东,
我还在听,不过已经完全不是我的研究兴趣了。。。 |
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w********h 发帖数: 12367 | 17 也不能说是坐井观天吧,
任何一个领域都有萌芽、成长、成熟、衰老、死亡几个阶段,自然规律。
说高分子理论在成熟期,不算什么过分的言论,
这时的天,已经和六七十年代,乃至八十年代的天已经截然不同了。
记住:de Gennes已死!de Gennes已死!
人要认清形势,
才不至于钻牛角尖,最后自己的“天”小到让自己感觉“怎么路越走越窄了呢”。 |
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m**c 发帖数: 7299 | 18 As of 2012, 71 Nobel laureates have been associated with Berkeley.
Berkeley currently has nine Nobel laureates on its faculty, out of the
twenty-five full-time faculty members who have won the Prize.
Sortable table
Name Year Prize Affiliation with UC Berkeley
George Akerlof (1940– ) 2001 Economics Professor of Economics (
1966–1978, 1980– )
Luis Walter Alvarez (1911–1988) 1968 Physics Professor of
Physics (1936–88)
Werner Arber (1929– ) 1978 Medicine ... 阅读全帖 |
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a****n 发帖数: 3082 | 19 高分子物理De Gennes 好像就好多predictions |
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t*****1 发帖数: 1459 | 21 France[edit]
Jean Tirole, Economics, 2014
Patrick Modiano, Literature, 2014
Serge Haroche, born in Morocco, then under French protectorate, Physics,
2012
Jules A. Hoffmann, born in Luxembourg, Physiology or Medicine, 2011
J. M. G. Le Clézio, Literature, 2008
Luc Montagnier, Physiology or Medicine, 2008
Françoise Barré-Sinoussi, Physiology or Medicine, 2008
Albert Fert, Physics, 2007
Yves Chauvin, Chemistry, 2005
Gao Xingjian, born in China, Literature, 2000
Médecins Sans Frontières, Peace, ... 阅读全帖 |
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t**8 发帖数: 4527 | 22 杨28 唯一排上名的是活着的有名物理学家19 , 在李政道之后,
其他的连前 50 名都排不上
Greatest physicist everThis is a featured page
In intellectual rankings, greatest physicist ever is an epitaph given to a
person, depending on ranking methodology, some rankings of which are listed
below, that classify, list, or describe someone as being the greatest
thinker in the field of physics of all time.
One of the more dominant surveys was the recent millennium poll on the
greatest physicist of all time, conducted by the British journal Phy... 阅读全帖 |
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y*****i 发帖数: 72 | 23 有些英文原版和中文影印版的物理教科书,要搬家了准备卖掉,有兴趣的可以跟我联系
Quantum Mechanics by Claude Cohen-Tannoudji,第二版,一共两本,$100(封面有些
旧)
Equilibrium Statistical Mechanics by Genn F. Mazenko,$45
Mathematical Methods in the Physical Science by Mary L. Boas, 第二版,$55
杰克逊的《电动力学》,高等教育出版社影印版,从国内寄过来的,算上邮费$20
Statistical Mechanics by R.K.Pathria,世界图书出版公司影印版,国内寄来,加邮
费$20
以上这些英文书都基本全新,里面没有涂写
另外还有一些中文书,从国内带来的,如果你在北卡Raliegh附近的话我就直接送给你了
胡嗣柱和倪光炯的《数学物理方法》
曾谨言的《量子力学导论》还有配套的习题集(上册)
林璇英张之翔的《电动力学题解》
郭硕鸿的《电动力学》 |
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w********h 发帖数: 12367 | 24 这个人虽然是化学教授,说的也同样外行。
有很多领域就是累死,也发不到什么Nature Science,
翻翻看吧,里面有多少生物的文章?又有多少纳米的文章?又有多少一般有机氟的呢?
de Gennes的Nobel winning paper,那种纯理论的,这么长,science收么?
只看杂志不看文章,大谬。
读过一些PRL和JACS文章,几年了才被引寥寥数次,
那种文章和发在低影响因子,但citation超过100的那种,
谁更重要呢? |
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w********h 发帖数: 12367 | 25 既然我说我“观察到”的牛人,肯定是把自己排除在外。
survive也不是什么贬义,还有更多的人不能survive自己的理想道路呢。
牛顿量级的牛人,一些比较突出的诺奖得主,可以算了。。。
de Gennes同学不就生前常被称为当代牛顿么?
他还不乐意,因为牛顿是英国人。
更不用说,各行各业也有开天辟地的大牛,
不过是不在那个科学萌芽的时代而已。
说话 |
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w********h 发帖数: 12367 | 26 7月底回国前拿到8月份的Physics Today还看到Zewail要参加主持一个会,
从国内开完会4号回来拿到新的一期C&E News,上面就是他突然去世的消息.
上半年Kroto也去世了.
07年的时候,这刚看到de Gennes写的文章评论我前老板的文章,
那边就听说他意外去世的消息.
有人统计下去年和今年院士去世的数量么?
我感觉很频繁,两院损失惨重. |
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c**i 发帖数: 6973 | 27 FEATURE: Taiwanese coffee takes place on world stage
Huang Po-lang, FEATURE: Taiwanese coffee takes place on world stage. Taipei
Times, May 10, 2011.
http://www.taipeitimes.com/News/taiwan
/archives/2011/05/10/2003502875
Note:
(a) 雲林縣 古坑鄉
http://zh.wikipedia.org/wiki/%E5%8F%A4%E5%9D%91%E9%84%89
(早於日治時期開始,日本人就開始在荷包山栽種多達三百公頃的「阿拉比卡」 [
Coffea arabica] 品種咖啡,由於品質優良,更獲選當時進貢日本天皇的重要經濟作物)
(b) Originally 台南縣 東山鄉, it is now 臺南市 東山區--following merger of
city and couty of Tainan by the Ma administration early... 阅读全帖 |
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y*****i 发帖数: 72 | 28 【 以下文字转载自 Physics 讨论区 】
发信人: yoshiki (Enjoy my life in the U.S.), 信区: Physics
标 题: 一些物理教科书
发信站: BBS 未名空间站 (Mon Mar 29 22:11:30 2010, 美东)
有些英文原版和中文影印版的物理教科书,要搬家了准备卖掉,有兴趣的可以跟我联系
Quantum Mechanics by Claude Cohen-Tannoudji,第二版,一共两本,$100(封面有些
旧)
Equilibrium Statistical Mechanics by Genn F. Mazenko,$45
Mathematical Methods in the Physical Science by Mary L. Boas, 第二版,$55
杰克逊的《电动力学》,高等教育出版社影印版,从国内寄过来的,算上邮费$20
Statistical Mechanics by R.K.Pathria,世界图书出版公司影印版,国内寄来,加邮
费$20
以上这些英文书都基本全新,里面没有涂写
另外还有一些中文书, |
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J**a 发帖数: 215 | 30 like your beloved de Gennes? lol |
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l**********1 发帖数: 5204 | 31 >
DNA prefers to dive head first into nanopores
January 8, 2013
by Kevin Stacey Enlarge
When a DNA strand is captured and pulled through a nanopore,
it's much more likely to start the journey at one of its ends (top left)
rather than being grabbed somewhere in the middle and pulled through in a
folded configuration. Credit: Stein lab/Brown University (Phys.org)—In the
1960s, Nobel laureate Pierre-Gilles de Gennes postulated that someday
researchers could test his theories of polymer networks by... 阅读全帖 |
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w********h 发帖数: 12367 | 32 什么叫“死守着那股清高来找心理平衡”?
还“小作坊”和“大科学”?当包工头就是大科学?
每个人有自己的原则和品位,也有评论的自由,
对于这种靠攫取资源来获得个人成功的例子,
不欣赏并且告诉大家不用去学这种,有错?
诺奖里面本来也就是有层次之分的,
Einstein、de Gennes这种难道和发现C60、graphene这种能相提并论?
死守 |
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S*****n 发帖数: 6055 | 33 Chemistry:
Staudinger
Flory
Ziegler-Natta
Heeger Shirakawa and MacDiamid
Physics:
de Gennes
Some ppl would count Steve Chu, but actually he got Nobel prize for
different reason, although he has great contribution to polymer science... |
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w********h 发帖数: 12367 | 34 three years ago, de Gennes died also from "a brief illness"...
very strange....
Ames
the |
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w********h 发帖数: 12367 | 36
何曼君老师的书里面没有详细介绍entanglement molecular weight(Me)的概念,
只是在粘度随分子量变化的图中引进了critical molecular weight(Mc)的概念,
即,eta---M^(1) when MMc.
一般而言,Mc=2-3Me.
在整个国内的高分子教学和科研中,
对于Rouse-Zimm Model和Reptation Model的介绍都太少,
当分子量低于Mc的时候,polymer melt可以用Rouse Model (Rouse)描述,
而高于Mc的时候,用Reptation Model (De Gennes, Doi, Edwards)描述。
Reptation Model得到的关于粘度在此区域的分子量依赖性为eta---M^(3),
而不是实验所得的3.4.
这种偏离目前最成功的解释是contour length fluctuations,
即分子链的末断的波动导致Reptation Model中的实际持续链长L有一修正dL.
当分子量M>>10-15Mc的时候,此因 |
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d*****w 发帖数: 124 | 37 当年de Gennes刚说完量化是要死的化学,Pople就得了NB奖。但对有些人,这有机合成也
就是混饭的手艺。
道
世界上还有什么再复杂的化合物是他们做不出来的吗?他们可以带着来自世界各地的PhD
常
给
以
天 |
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w********h 发帖数: 12367 | 38
也
de Gennes也没说错,获得Nobel奖也相当于曲终人散,战后犒赏了..... |
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b*o 发帖数: 47 | 40
How about these:
1. PG de Gennes, Scaling Concepts in Polymer Physics
2. Doi and Edwards, The Theory of Polymer Dynamics
3. Grosdberg and Kohkolov, Statistical Physics of Macromolecules |
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w********h 发帖数: 12367 | 41 我ft...
你推荐的书太偏了。前面两本是做Polymer Dynamics的必备,
其他方向的只需要读de Gennes的Introduction to Polymer Dynamics就好了。 |
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w********h 发帖数: 12367 | 42 我的意思是那两本书(尤其Doi&Edwards)不但专深,而且如果对于整个Polymer
Physics来讲的话还远远不够。Wunderlich的上下册的结晶对于高分子结晶是一份
非常经典的著作。而对于不做polymer dynamics的人来讲,de Gennes的那本小册
子已经够用来了解polymer dynamics了,而且在很多高分子物理书里都有介绍
Rouse, Zimm, Reptation theories. |
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s***e 发帖数: 911 | 43 我有印象---De Genne讨论过polymer brush的问题. 你这个问题是否可以借用类似的
讨论under外加加速度场呢? |
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l*****o 发帖数: 82 | 44 Give me some clues, please.
Was it discussed in some book? or Journal or somewhere?
It's too difficult to find it just by "De Gennes" and "Polymer brush". |
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c*****e 发帖数: 238 | 45 都是关于theory的
Modern Theory of Polymer Solutions
by M. Yamakawa
此书是经典之一,现在好像作者修订之后有了电子版,大家可以去搜一搜.
除此之外
polymers in solution: their modelling and structure
by G. Jannick and des Cloizeaux
这是非常comprehensive的书,两个作者一个是Neutron Scattering的专家,一个是
renormalization group的专家, de Gennes开创性的工作是和des Cloizeaux合作
一些的.可以参见他1972年的那篇phys. lett.
不过此书非常贵而且typo很多,关键是买不到
建议去看看法文版(原版,英文是翻译的), les polymeres en solutions
好像可以定购
最后是renormalization group of macromolecules,by Karl Freed
此书我从来没见过,不过my advisor是Freed的学生,说此书"过于重视 |
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c*****e 发帖数: 238 | 46 果然有大师的风范.
今天的topic是adhesion,这个东西我不熟,不过他讲得深入浅出,而且很幽默.
最有趣得是他首先恭维了大家(这个lecture是chemistry的,所以大部分人也是chemistry
或chemical engineering的),说他鼓励人们多做chemistry..
他主要讲了adhesion的几种类型,讨论了chemical或physical interaction的作用,
以及如何利用这些作用产生adhesion的作用,最后介绍了polymer在adhesion中的特殊意义.
由于没有把note带回来,也就大概记得这些了... |
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c*******n 发帖数: 1648 | 47 What's special on polymer adhesive then?
最有趣得是他首先恭维了大家(这个lecture是chemistry的,所以大部分人也是chemistry
义. |
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b***e 发帖数: 115 | 48 我也想知道,同问。
最有趣得是他首先恭维了大家(这个lecture是chemistry的,所以大部分人也是chemistry
意 |
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b**s 发帖数: 589 | 49 puke
最有趣得是他首先恭维了大家(这个lecture是chemistry的,所以大部分人也是chemistry
义. |
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c*****e 发帖数: 238 | 50 简单介绍一下他讲的内容吧,可能我记得比较乱.
首先他讲了测量adhesion强度的方法,主要有两种,一种是与张力(force of separation)
有关,主要是工程上用的;另一种比较"科学"的是用能量(energy of separation)来表征.
(插曲1,他讲到能量的方法时说,很抱歉这张transparancy是in french.不过拿出来一看
好像只有energie de separation这种一眼就能认识的french)
接下来给了一个两种表征方法中的参数,张力和能量的关系.
接下来他讨论了weak adhesion和strong adhesion的特点.
然后分析了什么作用才可能实现strong adhesion(G>100J/m^2) 指出光是chemical bonding
仍然是不足以达到这个强度,要是有electrostatic forces还有可能,其中他还分析了这种
作用的影响因素以及不足.
再接下来的内容就与polymer很有关系了,他提到了viscoelasticity对adhesion有特殊意义
因为不仅chemical bonding需要e |
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