|
p****e
发帖数: 105 | 2 Synthesis of Poly(ethylene glycol)-Polydiacetylene Conjugates and Their
Micellar and Chromic Characteristics
Authors: Choi, Hye; Bae, Yun Mi; Yu, Gwang Sig; Huh, Kang Moo; Choi, Joon
Sig
Source: Journal of Nanoscience and Nanotechnology, Volume 8, Number 10,
October 2008 , pp. 5104-5108(5)
h******[email protected]
Thanks. |
|
s**********r
发帖数: 67 | 3 文献信息：
Boca, S. C., M. Four, et al. (2009). "An ethylene-glycol decorated ruthenium
(II) complex for two-photon photodynamic therapy." Chemical Communications(
30): 4590-4592.
thanks a lot. |
|
R****k
发帖数: 234 | 4 you can try dried vinyl acetate-ethylene copolymer. it is made by emulsion
polymerization. particle size is hundreds of nm. |
|
p****e
发帖数: 105 | 5 Please send to h******[email protected], many thanks.
J Nanosci Nanotechnol. 2008 Oct;8(10):5104-8.
Synthesis of poly(ethylene glycol)-polydiacetylene conjugates and their
micellar and chromic characteristics |
|
|
x*******6
发帖数: 994 | 7 借人气求论文
Citation: Transactions of the ASABE. Vol. 46(3): 725?30 . @2003
Authors: C. Maneerat, Y. Hayata, N. Egashira, K. Sakamoto, Z. Hamai, M.
Kuroyanagi
PHOTOCATALYTIC REACTION OF TIO2 TO DECOMPOSE ETHYLENE IN FRUIT AND VEGETABLE
STORAGE
请发至z************[email protected] |
|
f*******t
发帖数: 31 | 8 Journal of Colloid and Interface Science
Volume 126, Issue 1, November 1988, Pages 171-180
online:
http://www.sciencedirect.com/science/article/pii/00219797889011
(Light-scattering study on the association behavior of triblock polymers of
ethylene oxide and propylene oxide in aqueous solution
Zukang Zhou1, Benjamin Chu)
Thank you in advance! |
|
l****h
发帖数: 28 | 9 不好意思，受朋友委托想问一下问题，不知谁是这方面的专家，请推荐。
1,2-Diphenyl- 1,2-bis(dichloroboryl)ethylene；bis(trimethylamine)-1,2-
diphenyl-1,2-bis(dichloroboryl)ethyl ene.
问题 1：这两种物质是否可以镍-钴合金中起到细化晶粒的作用。
问题 2：通过加入这两种物质，是否可以形成镍和钴的金属间化合物。
问题 3：如果在镍-钴合金中加入硼元素，既起到细化晶粒又能形成金属间化合物，起
到双重强化的作用， 如何做？用什么物质？
问题 4：要在镍-钴合金镀层中达到含有20-25%的硼元素，镀层是非晶态，又要如何做？
多谢！！！ |
|
n*********e
发帖数: 665 | 10 Could anyone help me get the pdf files of the following papers? Thanks so
much! Have a nice day!
1)
Title: N-Vinylformamide – Building Block for Novel Polymer Structures
Journal of Macromolecular Science, Part A
Volume 34
Issue 10
1997
Link:
http://www.tandfonline.com/doi/abs/10.1080/10601329708010315
2)
Title: Cationic initiation of oligomerization of vinylformamide
Macromolecular Rapid Communications
Volume 18
Issue 12
pages 1075–1083
December 1997
Link:
http://onlinelibrary.wiley.com/doi/10.1... 阅读全帖 |
|
a**r
发帖数: 224 | 11 A Highly Selective Ethylene Tetramerization Catalyst†
Yacoob Shaikh1,
Dr. Khalid Albahily1,
Matthew Sutcliffe1,
Valeria Fomitcheva1,
Prof. Dr. Sandro Gambarotta1,*,
Dr. Ilia Korobkov2,
Dr. Robbert Duchateau3,*
http://onlinelibrary.wiley.com/doi/10.1002/anie.201106517/abstr
Angew. Chem. Int. Ed.
Article first published online: 3 JAN 2012
DOI: 10.1002/anie.201106517
E-mail: a*********[email protected]
Thanks! |
|
z*********4
发帖数: 146 | 12 Reaction of Phthalic Anhydride and Ethylenediamine
Author : Qun-Zheng Zhang1,2,*, Chang-Chun Li1, Xue-Fan Gu1, Peng-Hui Yang1
and Xunli Zhang2
Keywords :
Phthalic anhydride, Ethylenediamine, Phthalic ethylene ammonium salt, N,N'-
Diphthaloyl-1,2-ethylenediamine, Structural characterization.
Year: 2011, Volume : 23 Issue : 7 Page : 2969 - 2972
http://www.asianjournalofchemistry.co.in/User/SearchArticle.asp
Thanks in advance!!! |
|
|
s********n
发帖数: 235 | 14 1.Title: PHOTOINDUCED HYDROGEN-PRODUCTION FROM AN AQUEOUS-SOLUTION OF
ETHYLENE-GLYCOL OVER ULTRAFINE GOLD SUPPORTED ON TIO2
Author(s): BAMWENDA, GR; TSUBOTA, S; KOBAYASHI, T; et al.
Source: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY Volume: 77
Issue: 1 Pages: 59-67 DOI: 10.1016/1010-6030(94)80009-X Published:
JAN 4 1994
http://www.sciencedirect.com/science/article/pii/10106030948000
many thanks!
x********[email protected] |
|
y***o
发帖数: 416 | 15 Advances in Catalysis
Volume 53, 2010, Pages 123–606
Chapter 3 – A Review of the Phillips Supported Chromium Catalyst and Its
Commercial Use for Ethylene Polymerization
http://dx.doi.org/10.1016/S0360-0564(10)53003-7
Thank you! |
|
G******e
发帖数: 235 | 16 1)International Journal of Polymeric Materials and Polymeric Biomaterials
Volume 61, Issue 5, 2012
Carboxylate-Ended Poly(ethylene glycol) Macromonomers and their Copolymers
as Inhibitors for Calcium Phosphate and Calcium Sulfate |
|
G******e
发帖数: 235 | 17 1)International Journal of Polymeric Materials and Polymeric Biomaterials
Volume 61, Issue 5, 2012
Carboxylate-Ended Poly(ethylene glycol) Macromonomers and their Copolymers
as Inhibitors for Calcium Phosphate and Calcium Sulfate |
|
h***o
发帖数: 350 | 18 A novel all-solid electrolyte based on a co-polymer of poly-(methoxy/
hexadecal-poly(ethylene glycol) methacrylate) for lithium-ion cell
Xiang Zuo,a Xiao-Min Liu,a Feng Cai,a Hui Yang,*a Xiao-Dong Shen*b
and Gao Liuc
J. Mater. Chem., 2012,22, 22265-22271
DOI: 10.1039/C2JM34270G
http://pubs.rsc.org/en/content/articlelanding/2012/jm/c2jm34270
Thank you very much! |
|
y***o
发帖数: 416 | 19 Polymer Engineering & Science
Volume 39, Issue 8, pages 1444–1455, August 1999
Thermal characterization of ethylene polymers prepared with metallocene
catalysts
P. Starck*, P. Lehmus, J. V. Seppälä
Polymer Engineering & Science
Volume 43, Issue 12, pages 1878–1888, December 2003
Quantitative determination of short-chain branching content and distribution
in commercial polyethylenes by thermally fractionated differential scanning
calorimetry
Mingqian Zhang, Sieghard E. Wanke
链接：
http://... 阅读全帖 |
|
y***o
发帖数: 416 | 20 A Polymerization Kinetics Comparison between a Metallocene Catalyst
Activated by Tetrakis(pentafluorophenyl) Borate and MAO for the
Polymerization of Ethylene in a Semi-batch Solution Reactor
Macromolecular Reaction Engineering
Volume 5, Issue 9-10, pages 418–430
http://onlinelibrary.wiley.com/doi/10.1002/mren.201100015/abstr
多谢了！ |
|
y***o
发帖数: 416 | 21 The Road to Early-Transition-Metal Phosphinimide Olefin Polymerization
Catalysts
Organometallics, 2005, 24 (11), pp 2548–2560
DOI: 10.1021/om050096b
http://pubs.acs.org/doi/pdf/10.1021/om050096b
Structure–Activity Correlation for Relative Chain Initiation to Propagation
Rates in Single-Site Olefin Polymerization Catalysis
Organometallics, 2012, 31 (2), pp 602–618
DOI: 10.1021/om200884x
http://pubs.acs.org/doi/pdf/10.1021/om200884x
Titanium Complexes of Silicon-Bridged Cyclopentadienyl−Phen... 阅读全帖 |
|
|
y***o
发帖数: 416 | 23 1. Highly Selective Olefin Trimerization Catalysis by a Borane-Activated
Titanium Trimethyl Complex
Organometallics, 2013, 32 (23), pp 6899–6902
DOI: 10.1021/om401098m
http://pubs.acs.org/doi/pdf/10.1021/om401098m
2. Hafnium Amidoquinoline Complexes: Highly Active Olefin Polymerization
Catalysts with Ultrahigh Molecular Weight Capacity
Organometallics, 2012, 31 (17), pp 6244–6251
DOI: 10.1021/om3005417
http://pubs.acs.org/doi/pdf/10.1021/om3005417
3. Trimerization of Ethylene to 1-Hexene with Ti... 阅读全帖 |
|
y***o
发帖数: 416 | 24 1. o-Phenylene-Bridged Cp/Amido Titanium Complexes for Ethylene/1-Hexene
Copolymerizations
Organometallics, 2006, 25 (9), pp 2133–2134
DOI: 10.1021/om0601854
http://pubs.acs.org/doi/pdf/10.1021/om0601854
2. Synthesis of Hafnium and Zirconium Imino−Amido Complexes from Bis-
imine Ligands. A New Family of Olefin Polymerization Catalysts
Organometallics, 2007, 26 (16), pp 3896–3899
DOI: 10.1021/om7004723
http://pubs.acs.org/doi/pdf/10.1021/om7004723
非常感谢您的帮助！ |
|
y***o
发帖数: 416 | 25 1. The Ethylene Polymerization with Ziegler Catalysts: Fifty Years after the
Discovery
Angewandte Chemie International Edition
Volume 42, Issue 41, pages 5010–5030, October 27, 2003
http://onlinelibrary.wiley.com/doi/10.1002/anie.200300580/pdf
2. Ultra-Rigid Metallocenes for Highly Iso- and Regiospecific Polymerization
of Propene: The Search for the Perfect Polypropylene Helix
Chemistry - A European Journal
Volume 18, Issue 14, pages 4174–4178, April 2, 2012
http://onlinelibrary.wiley.com/doi/10... 阅读全帖 |
|
y***o
发帖数: 416 | 26 1. Heterocycle-Fused Indenyl Silyl Amido Dimethyl Titanium Complexes as
Catalysts for High Molecular Weight Syndiotactic Amorphous Polypropylene
Organometallics, 2004, 23 (3), pp 344–360
DOI: 10.1021/om030543s
http://pubs.acs.org/doi/pdf/10.1021/om030543s
2. Phenylene-Bridged Cp/Carboxamide Ligands for Titanium Complexes of
Various Binding Modes and Their Ethylene/1-Octene Copolymerization
Organometallics, 2006, 25 (21), pp 5122–5130
DOI: 10.1021/om060604x
http://pubs.acs.org/doi/pdf/10.1021/om0... 阅读全帖 |
|
z****r
发帖数: 245 | 27 1.
OXIDATION OF ETHYLENE OVER SILVER - ADSORPTION, KINETICS, CATALYST
By: VERYKIOS, XE; STEIN, FP; COUGHLIN, RW
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING Volume: 22 Issue: 2 Pages:
197-234 Published: 1980
DOI:10.1080/03602458008066534
2.
STRUCTURE SENSITIVITY OF THE CATALYTIC-OXIDATION OF ETHENE BY SILVER
By: SAJKOWSKI, DJ; BOUDART, M
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING Volume: 29 Issue: 4 Pages:
325-360 Published: 1987
DOI:10.1080/01614948708078611
我们学校看不了，那位能帮忙下载一下？一个小包... 阅读全帖 |
|
|
s*********s
发帖数: 1303 | 29 请问环氧烷(比如ethylene oxide)是和有机酸的盐(coo-)反应快还是和沒有电离的酸(
cooh)反应快？
当年有机化学学的不好啊 |
|
q****i
发帖数: 6923 | 30 Recent Developments in the Synthesis and Structure of Organosilanols
Vadapalli Chandrasekhar Ramamoorthy Boomishankar Selvarajan Nagendran
Chem. Rev., 2004, 104 (12), pp 5847–5910
Publication Date (Web): October 13, 2004 (Article)
http://pubs.acs.org/doi/abs/10.1021/cr0306135
Regiospecific Radical Polymerization of a Tetrasubstituted Ethylene Monomer
with Molecular Oxygen for the Synthesis of a New Degradable Polymer
Akikazu Matsumoto Shuji Taketani
J. Am. Chem. Soc., 2006, 128 (14), pp 4566–456... 阅读全帖 |
|
|
发帖数: 1 | 32 如果把环氧乙烷投入这个水溶液中的话，如果是常温下，则发生环氧乙烷聚合加上水解
反应，尽管反应很慢。如果在较高温度下（80度）以上的话则低分子量聚合物的量要比
较大。
oxide |
|
x*******6
发帖数: 994 | 33 借人气求论文
Citation: Transactions of the ASABE. Vol. 46(3): 725?30 . @2003
Authors: C. Maneerat, Y. Hayata, N. Egashira, K. Sakamoto, Z. Hamai, M.
Kuroyanagi
PHOTOCATALYTIC REACTION OF TIO2 TO DECOMPOSE ETHYLENE IN FRUIT AND VEGETABLE
STORAGE
请发至z************[email protected] |
|
x*******6
发帖数: 994 | 34 来自主题: Environmental版 - 求论文 借人气求论文
PHOTOCATALYTIC REACTION OF TIO2 TO DECOMPOSE ETHYLENE IN FRUIT AND VEGETABLE
STORAGE
Citation: Transactions of the ASABE. Vol. 46(3): 725?30 . @2003
Authors: C. Maneerat, Y. Hayata, N. Egashira, K. Sakamoto, Z. Hamai, M.
Kuroyanagi
请发至z************[email protected] |
|
z***x
发帖数: 9 | 35 来自主题: Macromolecules版 - talk-4 Chain Walking produces Branches.
Zhibin Guan, Dupont CR&D,
Science, 283, 2059, 1999
a palladium-diimine catalyst catalyze ethylene polymerization.
利用late transition metal的b-elimination, hydride addition 实现chain walking
process.
通过调节气压改变的chain-walking 和polymer chain propagation
的速度从而实现tuning
polyethylene topology with pressure which can form linear PE to Dendritic PE.
It is very promising to make dendrimer by simple conventional polymerizaiton
method instead of tedious multi-step synthesis. |
|
t***m
发帖数: 114 | 36 Polymere Abbreviations
ABA Acrylonitrile butadiene acrylate
ABS Acrylonitrile butadiene styrene
ABS alloys ABS alloys
ACM Acrylic acid ester rubber
ACS Acrylonitrile chlorinated PE styrene
AES Acrylonitrile-ethylene/propylene-styrene rubber
AMMA Acrylonitrile methyl methacrylate
AN Acrylonitrile
AO Antioxidant
APET Amorphous polyethylene terephthlate
APP Atactic polypropylene
ASA Acrylonitrile styrene acrylate
ASA alloys ASA/PC, ASA/AES etc
ATH Aluminum trihydrate
AZ(O) Azodicarbonamide
BDS Buta |
|
c*s
发帖数: 2145 | 37 【 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!! |
|
I****u
发帖数: 36 | 38 分别 用 NMR and IR 对 Poly(ethylene glycol) M.W. 1000 进行分析
C13 NMR 一个未知的特征峰在 190ppm
Proton NMR 一个未知的特征峰在 8.6ppm
红外分析， 1700左右cm-1 有明显的峰值
并且这个组分同甲基璜酰氯反应。
能是什么呢？ |
|
w********h
发帖数: 12367 | 39 Dacron
A long-chain polyester made from ethylene glycol and terephthalic acid is a
basis of the fibre called Dacron. It is used in seat cushions, pillows and
mattresses. |
|
c*w
发帖数: 50 | 40 I want to polymerize poly(ethylene glycol) and lactide in 150 degree, stannous
octoate as catalyst. no water and high vacuum is very important.
In fact, many papers have described the polymerization: a polymerization tube
or flask connected with vacuum pump.
However, i found it's very difficult to find a suitable flask and very
difficult to keep the vacuum during the reaction.
Anyone who do this can teach me?
Thanks a lot!! |
|
c*w
发帖数: 50 | 41
Not exactly correct. PLA, PLGA and PLGA are hydrophibic, which makes the
implants or drug delivery devices opsonization in vivo. such shortcoming
results in a lot of work on the synthesis of Poly(ethylene glycol)-pLA
copolymers. |
|
r******0
发帖数: 2753 | 42
The difference between alchol and ester is much larger than alchol and ether.
~~~~
C-NMR may be more sensitive on this case.
I do hope you are right. Low MW polymer and very good NMR might tell the
difference. What I did is give you other possibilities that you may need
consider. Another suggestion is to order some very low MW poly(ethylene
glycol) and see if you NMR can see the chain end. If yes, you are right; if
not, :(
overlap.
ends
good |
|
|
|
w********h
发帖数: 12367 | 45 pure 1,2-PBD? The name of that is PVE, poly(vinyl ethylene).
Tg is around 0 degree C.
however, it has a very strong dependence on 1,2-content.
refer to Carella, Graessley, and Fetters, Macromolecules 1984, 17, 2775. |
|
s***a
发帖数: 4921 | 46 1. Poly(ethylene glycol)是否导电，应该是不导电的吧
2. 低分子量(380-460)的PEG是viscous liquid， 自然晾干或者在烘箱里面烘干，能否成
膜
3. 高分子量(10000)的是powder，可以溶于水，自然晾干或者在烘箱里面烘干，能否成膜
4. 用作不导电膜，哪一个比较好
Thanks |
|
c*s
发帖数: 2145 | 47 I have commercial PEG (poly ethylene glycol) but their PDI is relatively
high (~1.2). How to fraction it to get narrower PDI, hopefully <1.10?
thanks |
|
s****e
发帖数: 2934 | 48 Thank you for sharing the information. Sigh, I want to buy Poly(isoprene-b-
ethylene oxide),can't find it in four of these. Actually, I can not find
Laysan Bio by google.... |
|
s*****i
发帖数: 146 | 49 Zhong Z, Lok MC, Dijkstra PJ, et al.
Structurally well-defined copolymers of poly(ethylene glycol) and low
molecular weight linear polyethylenimine as vectors for gene delivery
JOURNAL OF CONTROLLED RELEASE 101 (1-3): 406-408 Sp. Iss. SI JANg 3 2005
also working on PEG-PEI |
|
s****e
发帖数: 2934 | 50 ☆─────────────────────────────────────☆
cds (红毛呼呼猪) 于 (Sat Sep 30 22:40:16 2006) 提到:
I have commercial PEG (poly ethylene glycol) but their PDI is relatively
high (~1.2). How to fraction it to get narrower PDI, hopefully <1.10?
thanks
☆─────────────────────────────────────☆
agostic (若即若离) 于 (Sun Oct 1 00:43:12 2006) 提到:
HPLC？
☆─────────────────────────────────────☆
cds (红毛呼呼猪) 于 (Sun Oct 1 16:13:00 2006) 提到:
now they ceased to provide this Mw peg LE
☆─────────────────────────── |
|
