w******r
发帖数: 13 | 1 Postdoc Position Available in the Field of Polymer Chemistry
October 20, 2007
We are currently looking for a Postdoc in the field of polymer chemistry at
the University of Wisconsin-Milwaukee. We intend to fill this position as
soon as possible. This Postdoc will be working on synthesizing novel
biomaterials for biomedical applications including drug delivery and tissue
engineering. Currently, this research group has eight research associates
conducting research related to biopolymers, biomateri |
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S*****n
发帖数: 6055 | 2 【 以下文字转载自 Macromolecules 讨论区 】
发信人: wonderlich (左岸，遁去), 信区: Macromolecules
标 题: Chemical Engineering Faculty Position: Rheology of Polymers and Soft Materials
发信站: BBS 未名空间站 (Sun Sep 7 20:21:34 2008)
Chemical Engineering Faculty Position: Rheology of Polymers and Soft
Materials
The Department of Chemical Engineering at Texas Tech University invites
applications for a tenure track position at the assistant or associate
professor level. Outstanding candidates with expertise in rheology of
poly |
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f***l
发帖数: 22 | 3 http://www.caer.uky.edu/powergen/news/Membrane_PostDoc_2012.pdf
Postdoctoral Scholar
The University of Kentucky, Center for Applied Energy Research (CAER) is
seeking to fill an immediate postdoctoral opening. The
successful candidate will develop polymer membrane for gas/liquid separation
. The position requires a Ph.D. in materials science,
membrane separation science, chemistry, chemical engineering, polymer or a
related field from an accredited college or university.
Prior experience in any f... 阅读全帖 |
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b**********e
发帖数: 2042 | 4 方向：micro-/nano-fluidics, fluid dynamics, polymer physics, polymer
dynamics, electro kinetics。
十分感谢！！ |
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d********O
发帖数: 1196 | 5 Title: Shrinking of Chemically Cross-Linked Polymer Networks in the Postgel
Region
Journal: Polymer Bulletin
2007, Volume 58, page 435-445 |
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q****i
发帖数: 6923 | 6 Benzocyclobutenes in polymer synthesis" by R.A. Kirchhoff, K.J. Bruza
Progress in Polymer Science, Volume 18, Issue 1, 1993, Pages 85-185.
俺的老板要，请发到俺邮箱q************[email protected]多谢！ |
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j****u
发帖数: 6 | 7 请问版上各位朋友,如何给国内的同学寄一些polymer的样品? 我的量都很少的,有5种
polymer,每种大概20毫克,都是粉末状的.
用USPS直接寄行吗,还是说像UPS这样的快递,需要弄什么海关的单字什么的吗?
谢啦! |
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d*****h
发帖数: 61 | 8 本来自己也只是个entry level，没有多大能耐，不过真的希望更多的中国xdjm能有事
做，壮大我们的队伍。我们公司不是topX的大公司，但是也不小，location也很好。如
有诚意者，站内邮箱联系。大概要求是：
Fresh PhD 或 MS with 5 years industrial experience;
Research experience on polymer science and esp. biodegradable polymer for
pharmaceutical application。
Degree in chemistry, chem engineering,material science, pharmaceutical
sciences.
我们老板现在在screening candidates，他也有自己的network的推荐，所以不能保证
能有什么推荐效果。 |
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f*****e
发帖数: 100 | 9 请帮忙查片文献好吗？
Polymer Preprints (American Chemical Society, Division of Polymer Chemistry)
(2003), 44(1), 518-519
拜谢了 |
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b***e
发帖数: 1008 | 10 【 以下文字转载自 Macromolecules 讨论区 】
发信人: barge (路人), 信区: Macromolecules
标 题: 求篇polymer 2001年的文章
发信站: BBS 未名空间站 (Fri Jul 23 01:00:30 2010, 美东)
Title:
Preparation and characterization of epoxy composites filled with
functionalized nanosilica particles obtained via sol–gel process
Authors:
Sungtack Kang, Sung Il Hong, Chul Rim Choe, Min Park, Soonho Rim and
Junkyung Kim
Polymer
Volume 42, Issue 3, February 2001, Pages 879-887
若找到请发到 y*********[email protected]， 非常感谢！ |
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l******g
发帖数: 13 | 11 Polymer Preprints (American Chemical Society, Division of Polymer Chemistry)
(2009), 50(2), 118-119.
e*******[email protected] |
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w********e
发帖数: 962 | 12 polymer chemistry or polymer physics? the topic is too wide. |
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l**y
发帖数: 595 | 13 他是在问你，是polymer physics还是polymer chemistry |
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y*******o
发帖数: 746 | 14 这个recruiter是真的急着招人，有绿卡并且有composite经验的人试一下这个职位吧。
投简历的时候说明是我refer你的（那个recruiter非得让我给他推荐一个同事/同学），
不要说是从网上看来的……你给我站内信我告诉你我的名字。
下面是recruiter给我的信：
I am engaged on a search for a Senior Polymer Chemist with
composites experience. My client is a very exciting, growth
oriented manufacturer of sustainable products in Denver. The
successful candidate must have experience with synthesizing,
formulating & evaluating polymers, resins, foams, & cellular
structures for the composites, insulation & adhesives mar... 阅读全帖 |
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h********h
发帖数: 1046 | 15 实验室搬家，忘了一点polymer在原来的地方
怕老板说，有什么办法可以寄过来？都是无毒的polymer，求保险一点的方法
thx |
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g*********n
发帖数: 808 | 16 如何去处纳米碳管上附着的polymer?
刚买来的纳米碳管上附有polymer， 想它除去， 不知用何法？
望知者不吝赐教！
谢谢 |
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A***4
发帖数: 30 | 17 Bioo Scientific is a rapidly growing biotech company that develops and
manufactures cutting edge products and services that have a direct impact on
human health for the food and feed safety and life science industries. Bioo
Scientific offers a comprehensive medical and dental insurance package and
stock option plan to complement its lively and nimble working environment.
Primary responsibilities:
The role of Development Chemist will include synthesis of bio-conjugates for
the application of biol... 阅读全帖 |
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d******i
发帖数: 4222 | 18 【 以下文字转载自 Macromolecules 讨论区 】
发信人: delvieri (leon), 信区: Macromolecules
标 题: 请推荐polymer grinding machine
发信站: BBS 未名空间站 (Wed Sep 26 15:23:56 2012, 美东)
想把pellet状态的树脂磨成粉末态，磨的东西强度不大，请大家推荐下哪个牌子的
polymer grinding machine 相对便宜好用些?
多谢了。 |
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f****n
发帖数: 95 | 19 搭车问一下，个人感觉polymer的工作机会相对多些是因为跟材料加工工程和实际的材
料应用联系较多的缘故。基本上都是比较old-fashioned的方向和领域——其实公司不
太喜欢花哨的科研吧，有用最实际最重要。
个人有点不明白的是，若干年后，这些研究/研发方向会不会更多地转移到亚洲去？
美国在此工业上会不会慢慢衰退？如果是的话，若干年后polymer的工作机会会更少，
对吗？ |
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c**********n
发帖数: 1982 | 20 polymer handbook
polymer |
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s*****0
发帖数: 244 | 21 Thiol–ene “click” reactions and recent applications in polymer and
materials synthesis: a first update
Andrew B. Lowe
Polym. Chem., 2014,5, 4820-4870
DOI: 10.1039/C4PY00339J
http://pubs.rsc.org/en/content/articlelanding/2014/py/c4py00339
email: [email protected]
(function(){try{var s,a,i,j,r,c,l,b=document.getElementsByTagName("script");l=b[b.length-1].previousSibling;a=l.getAttribute('data-cfemail');if(a){s='';r=parseInt(a.substr(0,2),16);for(j=2;a.length-j;j+=2){c=parseInt(a.substr(j,2),16)^r... 阅读全帖 |
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f******n
发帖数: 640 | 22 【 以下文字转载自 Macromolecules 讨论区 】
发信人: facedown (不要脸了), 信区: Macromolecules
标 题: 求审稿呀，关于polymer morphology
发信站: BBS 未名空间站 (Tue Jan 20 20:25:45 2015, 美东)
本人phd专业是polymer morphology, 文章发了一些，也曾经帮老板审过一些文章
希望得到版上大牛的帮助，累积审稿经验。希望能站内邮件，可以提供CV，感激不尽！ |
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m*******r
发帖数: 595 | 23 Recent progress in negative-working photosensitive and thermally stable
polymers
By: Higashihara, Tomoya; Saito, Yuta; Mizoguchi, Katsuhisa; et al.
REACTIVE & FUNCTIONAL POLYMERS Volume: 73 Issue: 2 Special Issue: SI
Pages: 303-315 Published: FEB 2013
Thanks a lot! |
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n*****e
发帖数: 19 | 24 Postdoctoral Openings at Center for Nanophase Materials Sciences, Oak Ridge
National Laboratory
Two postdoctoral positions are available immediately in the Macromolecular
Nanomaterials Group at the Center for Nanophase Materials Sciences at the
Oak Ridge National Laboratory (ORNL), focusing on theory and simulation of
dynamics and rheology of dynamically-bonded polymers [e.g. Nature Materials
10, 14-27 (2011)], in collaboration with the synthetic chemists and
experimental polymer physicists in t... 阅读全帖 |
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W****Z
发帖数: 44 | 25 A research assistant position is available for a Ph.D. candidate with
education and experience in the areas of nanocomposites, preferably polymer
nanocomposites, metal coating of polymer surfaces, and nanomechanical
testing. The applicant must have a MS degree and an excellent academic
record. The accepted applicant will also be expected to contribute to the
activities of the Missouri Industrial Assessment Center, which conducts
energy audits of industrial plants and make recommendations for ene |
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W****Z
发帖数: 44 | 26 A research assistant position is available for a Ph.D. candidate with
education and experience in the areas of nanocomposites, preferably polymer
nanocomposites, metal coating of polymer surfaces, and nanomechanical
testing. The applicant must have a MS degree and an excellent academic
record. The accepted applicant will also be expected to contribute to the
activities of the Missouri Industrial Assessment Center, which conducts
energy audits of industrial plants and make recommendations for ene |
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W****Z
发帖数: 44 | 27 A research assistant position is available for a Ph.D. candidate with
education and experience in some or all of the areas of nanocomposites (
preferably polymer nanocomposites), metal coating of polymer surfaces,
experimental mechanics and nanomechanical testing. The candidate must
provide demonstrated experience in the above areas. The applicant must have
a MS degree and an excellent academic record. Industrial experience is
desirable. The accepted applicant will also be expected to contribu |
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A*******8
发帖数: 50 | 28 各位朋友，
本人很想近两年多review一些杂志投稿。 在材料方面， 我知道不少课题， 例如
porous materials， inorganic or organic nanoparticles, polymer synthesis, 和
biomaterials. 此外， 我也比较了解一些常规的biologic evaluation on materials
， 例如 cell adhesion, attachment, proliferation, and differentiation. 在读
PhD期间， 我review过 nanotechnology, nanomaterials, polymer,以及biomedical
materials等杂志的来搞。 所以有一定的经验。 希望 各位能多考虑在下， 给我锻炼
的机会。
谢谢！ |
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s****u
发帖数: 19 | 29 ~{!>~} ~{TZ~} wonderlich (~{Ws06#,6]H%~}) ~{5D4sWwVPLa5=~}: ~{!?~}
composites??
I am sure here are many da xia. and I have many questions too. :)
first: how do I select rheometer? I know basically there are two kinds:
capillary and oscillary.
second: I guess that we might can get some different result from testing
filled polymer system from pure polymer system. can you tell me what more
information I can get?
Thanks, |
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a***n
发帖数: 1152 | 30 【 以下文字转载自 Chemistry 讨论区 】
【 原文由 superbenben 所发表 】
I am a nut in polymer science, could I believe the tetrafluoroethylene will
copolymerize with perfluoroallylbenzene to make a polymer with melting point
higher than PTFE? |
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b**s
发帖数: 589 | 31 【 以下文字转载自 Chemistry 讨论区,原文如下 】
发信人: magon (努力尝试中), 信区: Chemistry
标 题: 有个polymer
发信站: The unknown SPACE (Tue Mar 26 00:49:48 2002) WWW-POST
连着抽成真空的容器，加热到60 degree C,
这样可以通过使其中所含的水分蒸发从而除去水分，
而且不会使这个polymer vaporize, 这是我们组
已经形成的protocol.
在我作的时候，奇怪的事情发生了，
加热器温度设定的是60，
但是指示温度从60一直蹦到100，
(也许是温度计失控？不是，因为抽成真空的容器的气压显示
有气体正在通过)，然后，温度又从100慢悠悠降到60，
这个过程的同时气压也慢慢恢复到真空，显示刚才通过的气体慢慢消失。
是因为水蒸气吗？还是什么别的原因？ |
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b********t
发帖数: 992 | 32 你是要怎么分离，是POLYMER还是只是GPC上分，如果是GPC，操作很简单，当高分子量的
峰出来时候，这一分子量的分子链实际上已经从某一根COLUMN中出来了，而小分子量在CO
LUMN中停留的时间比较长，还不会出来，截取这一段的回收液重新做GPC就只会有第一个
峰。
如果是分离不同组份的POLYMER，你要找到合适的溶剂来溶解某一组份而保证其他的不溶
才行，溶剂的选择恐怕要考虑溶解度参数，来寻找合适的溶剂或者混合溶剂 |
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e****d
发帖数: 16 | 33 I am a new member here. And have a problem to ask for help.
我合成了一种聚合物， 合成过程中出现了爬杆包轴的现象，不溶。如何表征以证明发生
了交联？只有DSC一种方法么？ 谢谢。
I have synthesized an unsoluble polymer. During the polyerization, it showed
to be crosslinked. How can I make charaterization of it to confirm it has been
crosslinked? Is DSC the unique way?
If I change the reaction conditions, a soluble polymer can be obtained.
Thanks. |
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d*****s
发帖数: 313 | 34 I know it is a complex process to determine the exact persistence length of a
given polymer. I do not need the precise number, just a rough idea what the
persistence length of my polymer is. Is there any simple calculation or
measurement that I can do? Thanks. |
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b**s
发帖数: 589 | 35 Faint, Why you guys all pick PDMS?
Viscosity and elasticity mostly depend on the crosslinking density of the
target polymers. IF PDMS gets crosslinked, it's a kind of rubber! If
hydrogel-like polymers are not crosslinked, they are gelatinous materials,
just image the agaragar.
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b**s
发帖数: 589 | 37 Poly(methacrylic acid)
Poly(acrylic acid)
I guess
because DMF and DMSO are both their good solvents
I think you might calculate th solubility parameters of solvent and polymer,
make sure they match.
check out http://www.polysciences.com/ you will get some polymer standard
information |
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w******z
发帖数: 29 | 38 Any body here familiar with the polymer programs in the universities in
Canada. I checked several universities, like UBC, UT. Looks the polymer
science there are not very strong. I may want to find a position in Canada for
couple of years after graduation next year. |
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c*s
发帖数: 2145 | 39 【 以下文字转载自 Chemistry 讨论区,原文如下 】
发信人: weiss (weiss), 信区: Chemistry
标 题: help: solubility of two polymers in water???
发信站: The unknown SPACE (Mon Nov 4 14:25:47 2002) WWW-POST
poly-ethylene glycol: OH-(CH2CH2-O)n-H
poly-propylene glycol: OH-(CH(CH3)CH2-O)n-H
very simple polymers, but can't find their solubility in water. any one
happens
to know this??
Just want to compare them, have an idea about how the methy group can change
the solubility.
thanks!! |
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c*********e
发帖数: 119 | 40 from http://www.psrc.usm.edu/macrog/index.htm
So you want to know just how and why these polymers, these macromolecules, act
differently from small molecules. So we'll tell you. That's just the kind of
nice people we are. There are, for those of you who didn't bother to read the
title, three ways in which polymers will act differently from small molecules.
And the reasons are a little bit more complicated than just "because they're
bigger". The three are usually named:
Chain entanglement
Summati |
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l*****o
发帖数: 82 | 41 If some polymer solution( such as PMMA in isopropenol) is spin-coated
on a Si wafer at spinning speed V rpm, how to calc the thickness distribution
of coated polymer film?
Anyone can give a hint? |
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d*****s
发帖数: 313 | 42 I donot know if this model exists. But in my point of view,
the problem itself is rather complicated.
I did not read your previous posts very carefully. My guess
was you wanted to spin-coat polymers. For polymers, the thickness
might be a function of RPM, density, rigidity. These, and other
factors I've not thought of determine the forces exerted on
your sample, thus the structure/thickness. |
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d*****s
发帖数: 313 | 43 I wonder if there exists such kind of a polymer which has amphiphilic
side chains and all the side chains are attached to one side of the polymer
backbone.
Moreover, if the proportion of the amphiphilic side chains in one side
can be adjusted from 100pct to 50pct, that will be better.
Can anyone please shed me some light if there is any material that can do
this? If it is commercially available that would be better. Thanks. |
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y****u
发帖数: 50 | 44 what is amphiphilic side chain? do you mean amphiphilic block copolymer
grafted onto the backbone of a polymer chain? I don't know anything about such
kind of material, but it is technically possible.
what do you mean by "all the side chains attached to one side of the polymer
backbone"? do you mean 100% isotactic? that makes mission impossible.
if there is a way to synthesize your material, there will be a way to tailor
the content of each component. |
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a***n
发帖数: 578 | 45 thank for your information.
The problem I try to consider is target polymer will degrade at plantinum
surface under oxygen atomsphere. My initial idea is that the oxygen dissociate
on the plantinum surface as radical. Then this radical attack the side chain
of polymer and then degrade. Is it reasonable mechanism?
Are there any book to talk about degradation? Thanks a lot. |
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c*****e
发帖数: 238 | 46 Frustration effects in polymer systems
这个东西与我做的很有关系,所以听的比较认真.
所谓frustration,指的是体系有一个比较"喜欢"的低能量状态,但由于其他因素并
不能达到能量最低的状态.
一个简单的例子,如Ising magnet,或者不相容的polymer mixture,这种体系有相分离
(相变)的趋势,但在crosslink的A,B混合物中,相分离就不一定能顺利进行.比如
一般体系发生相分离的条件大概是
\chi * N～1,
在crosslink体系中,尽管总的趋势是满足这个条件的,但局部条件并不能得到满足
因为\chi *Ne(有效链长)<1.所以相分离不能顺利进行,体系就有可能被冻结在一个
metastable state.
具体的例子就是体系发生microphase separation的条件与具体的microphase structure
有关,并不能直接从mean field result来预言.
一般来说体系的相分离由concentration fluctuation诱发,但局部的fluctuation
有时并不一定 |
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b**s
发帖数: 589 | 47 【 以下文字转载自 Chemistry 讨论区,原文如下 】
发信人: LowIQ (弱智), 信区: Chemistry
标 题: [转载] Ph.D. Polymer Chemistry Position (fwd)
发信站: The unknown SPACE (Tue Apr 8 14:47:45 2003), 转信
【 以下文字转载自 JobHunting 讨论区 】
【 原文由 SwordX 所发表 】
Please feel free to pass this along to anyone that you feel is qualified. The
salary will go to about 100K with a great relocation package.
Description:
The incumbent will: - Develop a fundamental understanding of and contribute to
process improvement of existing polymer systems used i |
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a***n
发帖数: 578 | 48 Is there a way to estimate wheter a polymer is expensive or not? For example,
given two polymers, how to judge which one is cheaper? Thanks in advance |
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a***n
发帖数: 578 | 49 really? Why some polymer is so expensive even the demand is huge?
a big reason that fuel cell can't be popular is that the using polymer is very
expensive.
example, |
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b*****h
发帖数: 29 | 50 some suggestion for me to use 二茂铁衍生物 synthesis magnetic polymer is
correct or not?
since I have check the paper, this kind of polymer or even monomer itself is
paramagnetic that means non-mag at least in room temperature.
can some one know anything or have found any paper with this?
how about Sol-gel or composites?
or ferroplating?
I am amazed by how hard to fabricate some magneic fibres array!
maybe i should found another way to simulate the cilia movement.
since I can not use this as a large r |
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