l**********n
发帖数: 1742 | 1 What’s Actually In Instant Ramen
There’s a LOT of sodium. (Photo: Tumblr/kiddwelldontcare)
Odds are, you’ve eaten instant ramen noodles at some point in your life.
Maybe you were in college or trying to save money. Or maybe you think they
just taste really good. Whatever the reason, this five-minute meal has been
a hit with budget-friendly consumers for years.
Despite its popularity, it’s not exactly a secret that instant ramen isn’t
exactly a health food — and recent research has backed that up... 阅读全帖 |
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g*****y
发帖数: 6325 | 2 Importance of True Raw Almonds
Before we discuss the many health benefits of almonds, it is critical to
stress that not all almonds are “created” equal. When choosing almonds to
include in your diet, make sure they are both organic and raw. Almonds that
are cooked or processed not only lose many of their benefits, but can
actually become harmful. However, you need to be aware that almonds labeled
raw are not always truly “raw.” Most commercially grown almonds in the U.S
. are sterilized by one o... 阅读全帖 |
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x********u
发帖数: 15396 | 3 http://www.fda.gov/Safety/Recalls/ucm313572.htm?source=govdeliv
Contact:
Brad Armistead
1-888-559-8833
FOR IMMEDIATE RELEASE - July 27, 2012 - Arthur Dogswell LLC, Los Angeles, CA
90025, is voluntarily recalling 1051 cartons packed as either 10 or 50
packages per case of Catswell Brand VitaKitty Chicken Breast with Flaxseed
and Vitamins because it has the potential to contain propylene glycol. High
levels of propylene glycol in the treats could result in serious injury to
cats. The adverse healt... 阅读全帖 |
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S*****n
发帖数: 6055 | 4 steam reforming to syngas
then to methanol
then MTP to propylene
then propylene polymerization |
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b**s
发帖数: 589 | 5 关键字: propylene polymerization
你想做聚合研究呢还是只想要一点PP
催化剂: Z-N, 和metallocene
氢气: 调节分子量，一般不必
高压： 提高产率
其实随便找个瓶子，只要不漏气，保持无氧无水就可以，催化剂溶到甲苯中，通propylen
e，加酒精终止沉淀就行
能
用
的
备 |
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a*****s
发帖数: 838 | 6 借人气问个问题：
polyester propylene中文名字是什么？
polypropylene中文名字又是什么？
谢谢！ |
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a*****s
发帖数: 838 | 7 其实主要是要问polyester propylene
第二个放上来是为了和第一个区别。 |
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m**********e
发帖数: 12525 | 8 polyester propylene是一种塑料，由聚酯(PET)和聚丙烯(PP）混合形成，不是纯净物
，是混合物，跟常见的工程塑料ABS一样，是混合物。
PET-PP最主要用来做绳，也用来做水管 |
|
s*****r
发帖数: 11545 | 9 哈，气硬还是牛逼啊，俺还想当然认为那是烯丙酸酯的聚合物呢。
: polyester propylene是一种塑料，由聚酯(PET)和聚丙烯(PP）混合形成，不是
纯净物
: ，是混合物，跟常见的工程塑料ABS一样，是混合物。
: PET-PP最主要用来做绳，也用来做水管
|
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g****y
发帖数: 72 | 10 电子烟的雾气是加热雾化propylene glycol产生，我都奇怪这怎么会被批准。好多人还
向雾化液中乱加东西，比如大麻等。自己作死，别人挡不住。 |
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q**j
发帖数: 10612 | 11 1 Move the Toyota Camry to a flat area and set the parking br
ake. Then, open the hood, securely prop it up and touch the radiator. If the
radiator is cool to the touch, proceed to the next step. If not, wait for i
t cool before you continue.
2 Twist the radiator cap one full turn, pause for a few secon
ds, and then completely remove the radiator cap. You want to pause because e
ven though the radiator is cool, there can still be internal pressure. The o
ne full twi... 阅读全帖 |
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m***j
发帖数: 533 | 12 无论何时，一定记住，Walmart等地卖的coolant上面说可以和任何coolant mix的那话
都是蒙人的。任何时候不要乱mix coolant除非你确定这样mix 是可以的。
关于coolant base：常见的coolant是乙二醇（ethylene glycol）基的，也有一些用丙
二醇（propylene glycol）的，现在新技术还有别的。要记住的是如果base不一样是绝
对严禁混的。不过这个问题倒是不用太担心至少常见车的冷却液都是乙二醇基的。
最tricky的问题是corrosive inhibitor。老coolant里常用的corrosive inhibitor有
硼酸盐（borate），硝酸盐（nitrate）, 亚硝酸盐（nitrite）, 磷酸盐（phosphate
）, 钼酸盐（molybdate）和硅酸盐（silicate）。
现在新的coolant基本上开始用一些有机酸（organic acid）作为corrosive inhibitor
了，这样coolant的寿命更长。OAT比较少，更多的是HOAT（hybrid organic acid
tec... 阅读全帖 |
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e******d
发帖数: 310 | 13 刚搬进来两个星期， 发现房子的正东面大约2 mile的地方有个 combined-cycle gas
-fired power plant。
现在的问题是这样的房子是 污染会不会比较严重， 不适合有小孩和老人的家庭住了,
更不适合在这样的环境下怀孕了？
在网上查了下这家发电厂的基本情况，功率是800MW。 污染物的排放如下
氧化氮 （NOx）10.6 吨每年
一氧化碳 2.29 吨每年
二氧化硫 0.70 吨每年
VOC 0.87 吨每年
TSP=PM10 0.75 吨每年
Ammonia 293 吨每年
Sulfuric acid 1.621 吨每年
1，3-Butadiene 0.011 吨每年
Acetaldehyde 1.02 吨每年
Acrolein 0.163 吨每年
Benzene 0.612 吨每年
Ethylbenzene 0.816 吨每年
Naphthalene 0.033 吨每年
PAHs 0.056 吨每年
Pr... 阅读全帖 |
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J*******2
发帖数: 2457 | 14 我用了一段时间了，结果发现成份里含有petrolatum(石油冻)和propylene glycol(丙
二醇），
精华区有篇文章说这样的成份应该避免
大家孕期用cetaphil cream吗？本来我还觉得挺好用的 |
|
c****n
发帖数: 15245 | 15 1.Blue Lizard Australian Sunscreen Sensitive Sunscreen SPF 30 Plus
成分：Titanium Dioxide 5%, Zinc Oxide 10%., Beeswax, C12-15 alkyl benzoate,
caprylyl glycol, cetyl dimethicone, cetyl dimethicone copolyol,
chlorphenesin, disodium EDTA, ethyhexyl palmiatate, ethylhexyl stearate,
hexyl laurate, hydrogenated castor oil, methyl glucose dioleate, octododecyl
neopentanoate, PEG-7 hydrogenated castor oil, phenoxyethanol, polyglyceryl-
4, isostearate, propanediol, purified water, sorbitan oleate, stearic ... 阅读全帖 |
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c*********v
发帖数: 589 | 16 早上看报告基本confirm API的数据, 比较吃惊. 10M以上的储存, 加上炼油厂开工(从
汽油量可以反应出来,基本汽油短缺被磨平)都没能降低储量.的确大大利空.
晚上终于有空仔细研究报告.又有新的一个视角.
首先进口大量增加(>10%). 这一项一个星期就增加6M. 所以增加的多数不是本地油,是
进口油 (重油,酸油? 这个东西进口多些,本地不太产). 为什么增加?炼油厂开工后, 用
重油的厂大进货?无论如何应当是个暂时现象. 另外,不认为进口的是甜油,除非炼油厂
疯了,不买WTI买更贵的Brent.
那么大家关心的美国油产量如何? 如果你读一下产量数据,可以发现和上周,上上周,基
本在类似水平. 这说明什么呢? 美油产量可能已经peak, 那么产量回落后, 五月储量应
该也peak. 这是个好消息. 大家大可不必恐慌.
这信息对我们有什么用呢?
1. 我觉得应该调整操作期望.
首先油价不应该再到42-44. 那个价钱对应着油满仓的恐慌. 但是这个牛皮已经破了.
到底这次的最低限在哪里呢?我们可以追溯这次涨价的历史, 可以看到如果储量增加,只
是glut,市场给它的定价在47.... 阅读全帖 |
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l**********1
发帖数: 415 | 17 Summary of Weekly Petroleum Data for the Week Ending May 1, 2015
U.S. crude oil refinery inputs averaged over 16.3 million barrels per day
during the week
ending May 1, 2015, 247,000 barrels per day more than the previous week’s
average.
Refineries operated at 93.0% of their operable capacity last week. Gasoline
production
decreased last week, averaging about 9.2 million barrels per day. Distillate
fuel
production increased last week, averaging 5.0 million barrels per day.
U.S. crude oil imports... 阅读全帖 |
|
c*********o
发帖数: 1734 | 18 I will recommend the first three responds with the right background to the
editor.
There is no guarantee you will be picked by the editor.
Send email to c*********[email protected] with the following information:
You official name
Your degree
Your business email address
You business title
And brief introduction of your background.
Most important: register with EJPS as a reviewer with your business email
address before you send me email
I will not recommend you if you miss any of above.
"Solid self - e... 阅读全帖 |
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c******n
发帖数: 499 | 19 我是国内过来的医生
美国医院的仪器的确要比国内先进成千上万倍
国内没有这些仪器有些手术方式就创伤大点
但是 要论到开刀水平 绝对是国内一流的
美国医生一年能开几个刀 国内一年能开几个刀
我们国内的医院请美国医生来开刀大部分是请他们来玩的 just throw them a bone
我们一天开的刀就要赛过他们一个月能开的刀
亲眼所见 穿3个月先心患儿的动脉 尼玛拿个我们从没见过的先进针头后面还连了个小
型B超机穿啊穿 半小时都找不到动脉 我们的巡回护士看不下去了 手摸了一下 拿针头
盲穿半分钟搞定
再者 美国医生开的刀浪费是很严重严重的 严重到什么程度你都没法想象
一根propylene的丝线 国内大概100多块吧 我们的医生做一个先心手术总共用6-7根
那个美国医生做的手术把我们都震惊了 他每缝一针换一根线 总共用了140多根线 说是
这样清洁 避免感染
我们的巡回护士点的眼睛都花了（手术大部分步骤结束后需要清点器械以免遗漏在病人
体内 确认无误后才能关胸）
还好这个小病人是福利院的 有国家养着 光缝线就要14000多块钱 哪个家庭担当的起啊 |
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A***u
发帖数: 3714 | 20 corticosteroid 阿，
吓我一跳。。。
***********************************************************************
Ultravate® contains halobetasol propionate, a synthetic corticosteroid
for topical dermatological use. The corticosteroids constitute a class of
primarily synthetic steroids used topically as an anti-inflammatory and
antipruritic agent.
Chemically halobetasol propionate is 21-chloro-6α, 9-difluoro-11β, 17-
dihydroxy-16βmethylpregna-1, 4-diene-3-20-dione, 17-propionate,
C25H31ClF2O5. It has the ... 阅读全帖 |
|
m****p
发帖数: 404 | 21 猎头发过来的职位 有兴趣的话自己上网申吧 祝好运
Lab Supervisor
Valero Energy
Three Rivers, TX
Job Description
Ensures the efficient and orderly operation of the analytical laboratory and
supervision of the Laboratory Technicians to provide accurate and timely
analysis of product.
• Provides direct supervision of laboratory employees to ensure high
quality of work performed and laboratory analysis is performed in a safe,
timely and accurate manner.
• Evaluates and sets policies and procedures for l... 阅读全帖 |
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S****y
发帖数: 1305 | 22 刚刚在CVS买了一管14多刀的祛痘印胶。上面写着祛除各种情况产生的疤痕，包括痘痘。
透明的胶质，没有气味，用起来感觉还不错。不知道是不是安全，或者有没有效。
成分：
Water; Glyceryl Polymethacrylate (and) Propylene Glycol; Allium Cepa (Onion)
Bulb Extract; Polysorbate 20; Phenoxyethanol (and) Chlorphenesin (and)
Glycerin (and) Methylparaben (and) Benzoic Acid; Sodium Carbomer; Aloe
Barbadensis Gel; Juglans Regia (Walnut) Shell Extract; Allantoin; Chamomile
Extract; Disodium EDTA; Fragrance; Phytonadione (Vitamin K) |
|
s*******e
发帖数: 15758 | 23 谢谢分享
但是看了这个review不敢买了
Bottom Line: not recommended
I have used this product until I found out about what ingredients are
hazardous to our health. This product contains Sodium Laureth Sulfate, 1 of
3 of the most deadly ingredients. It's used in garage floor cleaners,etc.
and is very corrosive. See, [@] for more info. What goes on your skin ends
up in your bloodstream. Avoid the ingredients, Propylene Glycol & Mineral
Oil, the other 2 deadly ingredients. I wanted to give it zero stars but the
site |
|
c*****e
发帖数: 436 | 24 以前用的都是这种（有效）：Effaclar A.I. Targeted Breakout Corrector
http://www.laroche-posay.com/products-treatments/effaclar/effaclar-a-i-p535.aspx
成分：
Ingredients
AQUA / WATER
CYCLOHEXASILOXANE
ISONONYL ISONONANOATE
PROPYLENE GLYCOL
ISOHEXADECANE
NIACINAMIDE
PEG-100 STEARATE
GLYCERYL STEARATE
CETYL ALCOHOL
ARGILLA / MAGNESIUM ALUMINUM SILICATE
CARBOMER
SODIUM HYDROXIDE
CAPRYLOYL GLYCINE
CAPRYLOYL SALICYLIC ACID
CITRIC ACID
XANTHAN GUM
ACRYLATES COPOLYMER
SALICYLIC ACID
IODOPROPYNYL BUTYLCARBAMATE
CHLORHEXI |
|
l******8
发帖数: 4133 | 25 看题目我就知道lz要说的是哪款了，
我也用的小样，很油但是过会就吸收，确实有点即时效果但绝对没有lz说的这么明显，
我感觉很象硅的感觉啊，硅的作用不就是暂时填平皱纹吗？如果是这样还是拔草吧。
虽然查成分貌似 没有？
Propylene Glycol, Cyclopentasiloxane, Ascorbic Acid, Glycerin, Cetyl Peg/Ppg
-10/1 Dimethicone, Dimethicone Crosspolymer, Lauroyl Lysine, Acrylates
Copolymer, Adenosine
硅不是silicon吗？为什么里面没有啊？还是有变体，偶不认识？？？？ |
|
N******t
发帖数: 16051 | 26 那个眼科专家告诉我说，herpesvirus绝大多数猫都在出生不久就感染了，不过有时候
新猫接触会互相传染不同的strain还是神马的，导致症状加重
lysine可以买人吃的，不要有propylene glycol，每天500mg |
|
wh
发帖数: 141625 | 27 多谢！丙烯印墨就是这种floating ink的墨吗？英语是什么？我搜propylene ink没搜
到……主持人只说这是日本的墨和纸，她是从香港买的，在Amazon等网上没找到。如果
能在这里买到就好啦，很多老师家长都想让小孩玩玩。 |
|
wh
发帖数: 141625 | 28 多谢！丙烯印墨就是这种floating ink的墨吗？英语是什么？我搜propylene ink没搜
到……主持人只说这是日本的墨和纸，她是从香港买的，在Amazon等网上没找到。如果
能在这里买到就好啦，很多老师家长都想让小孩玩玩。 |
|
g***2
发帖数: 403 | 29 http://www.thefreelibrary.com/China+is+making+a+vigorous+development+of+DMC.+(Market+Report)-a093738219
Ester exchange process East China University of Technology has made an
intensive study of the ester exchange process and developed the technology
for the commercial production of dimethyl carbonate through the ester
exchange between propylene carbonate and methanol. The technology uses a
special separation method (catalytic rectification and azeotropic
rectification) to produce high-quality di |
|
g***2
发帖数: 403 | 30 green
In author's opinion the ester exchange process has the following long points
(1) The two products (dimethyl carbonate and propylene glycol) produced with
the process are both in urgent market demand and therefore the input/output
effect of the process is better than the carbonylation process.
(2) Compared with the carbonylation process, the ester exchange process has
better environmental protection and can reduce the emission of carbon
dioxide carbon dioxide, chemical compound, CO2, a colo |
|
g***2
发帖数: 403 | 31 老O的跟贴一来就上十大
1.看来还为王锦山的是和我过不去, 生物学家得了, 和化工化学,制药都没关系
2.将绿色也不仅仅是中国, 老美也有; 多数的生产企业还是希望绿色的, 可以满足政府
,社会的需要
3. 这里的田的文章可以给你个背景, 为什么绿色
A)替代光气
B)消耗二氧化碳
proplene oxide + carbon dioxide ---> propylene carbonate
写报道的水平就另讲了 |
|
s********g
发帖数: 252 | 32 FEP （Flourinated Ethylene Propylene）的管子，has failed during Mouse Embryo
Assay (MEA) test
有化学污染物？
细菌污染？
不是这个行业的，不大懂，希望大家不吝指教。谢谢啦 |
|
k***i
发帖数: 662 | 33 August 16, 2007
Business
Rohm And Haas Boosts Display Materials
U.S. company strikes deal with South Korea’s SKC
Jean-Franois Tremblay
Rohm and Haas will spend $190 million to acquire a 51% stake in the display materials business of SKC, a South Korean producer of propylene oxide, polyester films, and display materials. SKC is part of the SK Group, South Korea’s main oil refiner and one of the country's largest business groups.
Employing 600 people, SKC's display business consists mostly of plan |
|
w****b
发帖数: 229 | 34 ＋U
还有62篇
August 16, 2007
Business
Rohm And Haas Boosts Display Materials
U.S. company strikes deal with South Korea’s SKC
Jean-Franois Tremblay
Rohm and Haas will spend $190 million to acquire a 51% stake in the display
materials business of SKC, a South Korean producer of propylene oxide,
polyester films, and display materials. SKC is part of the SK Group, South
Korea’s main oil refiner and one of the country's largest business groups.
Employing 600 people, SKC's display business consists most |
|
s********1
发帖数: 581 | 35 以下成分对人体有害或致癌吗？
一化妆品含以下成分：
aqua/eau
stearic acid
cetearyl alcohol
ceteareth-20
paraffin
triethanolamine
polyvinyl alcohol
phenoxyethanol
imidazolidinyl urea
methylparaben
propylene glycol
mica
titanium dioxide (cl77891)
感谢！ |
|
s********t
发帖数: 86 | 36 CH2 methylene
CH2CH2 ethylene
CH2CH2CH2 propylene??? |
|
v*********r
发帖数: 184 | 37 请教各位：
我做电池的，想看一下电池里电解质溶液在电池放电到不同depth of discharge时候，
电解质溶液有没有什么变化，是不是可以通过GC-MS/LC-MS？
电解质溶液是: 1.0M LiAsF6 in PC (Propylene carbonate) /DME (Dimethoxyethane)
。 主要是怀疑有些阴极材料放电过程中会部分溶解在电解质溶液里。
和一个做分析的实验室联系过做了LC-MS，对方说因为LiAsF6浓度太大，很难检测出电
解质溶液在放电过程中有没有新增加的杂质。不知道有没有人知道如何检测，或者如何
把LiAsF6去掉，又能保证不同时去掉可能溶解在电解质溶液的阴极材料decomposition
products.
//bow |
|
|
N**k
发帖数: 1522 | 39 Study of the Decomposition of Propylene Carbonate on Lithium Metal Surface
by PyrolysisGas ChromatographyMass Spectroscopy
Ryo Mogi, Minoru Inaba,*§ Yasutoshi Iriyama, Takeshi Abe,
and Zempachi Ogumi
Langmuir, 2003, 19 (3), pp 814–821 |
|
f*******t
发帖数: 31 | 40 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! |
|
s********n
发帖数: 235 | 41 Title: INVESTIGATION OF THE FERMI EDGE IN SODIUM TUNGSTEN BRONZES BY PHOTO-
ELECTRON SPECTROSCOPY
Author(s): EGDELL, RG; HILL, MD
Source: CHEMICAL PHYSICS LETTERS Volume: 85 Issue: 2 Pages: 140-144
DOI: 10.1016/0009-2614(82)80318-7 Published: 1982
http://www.sciencedirect.com/science/article/pii/00092614828031
Title: OPTICAL TRANSITION TO FERMI LEVEL IN NAXWO3
Author(s): GIULIANI, G; STELLA, A; GUSTINET.A
Source: PHYSICS LETTERS A Volume: A 38 Issue: 7 Pages: 515-& DOI: 10.
1016/0... 阅读全帖 |
|
s********n
发帖数: 235 | 42 Title: BAND-STRUCTURE AND DENSITY-OF-STATES OF NAXWO3
Author(s): ZHAN, CG; ZHENG, F
Source: THEOCHEM-JOURNAL OF MOLECULAR STRUCTURE Volume: 104 Issue: 1
Pages: 89-98 Published: SEP 1993
apps.webofknowledge.com/full_record.do?product=UA&search_mode=GeneralSearch&
qid=2&SID=V2D@HG4lld1gEjiM9eJ&page=8&doc=75
Title: ANDERSON LOCALIZATION IN TUNGSTEN BRONZES - A NUMERICAL STUDY
Author(s): KOSLOWSKI, T; VONNIESSEN, W
Source: PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL
MECHA... 阅读全帖 |
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e******d
发帖数: 310 | 43 【 以下文字转载自 Living 讨论区 】
发信人: easyroad (pine), 信区: Living
标 题: 房子边上的 电厂
发信站: BBS 未名空间站 (Thu Dec 26 20:10:05 2013, 美东)
刚搬进来两个星期， 发现房子的正东面大约2 mile的地方有个 combined-cycle gas
-fired power plant。
现在的问题是这样的房子是 污染会不会比较严重， 不适合有小孩和老人的家庭住了,
更不适合在这样的环境下怀孕了？
在网上查了下这家发电厂的基本情况，功率是800MW。 污染物的排放如下
氧化氮 （NOx）10.6 吨每年
一氧化碳 2.29 吨每年
二氧化硫 0.70 吨每年
VOC 0.87 吨每年
TSP=PM10 0.75 吨每年
Ammonia 293 吨每年
Sulfuric acid 1.621 吨每年
1，3-Butadiene 0.011 吨每年
Acetaldehyde 1.02 吨每年
Acrolein 0.163 吨... 阅读全帖 |
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s********1
发帖数: 581 | 44 以下成分对人体有害或致癌吗？
一化妆品含以下成分：
aqua/eau
stearic acid
cetearyl alcohol
ceteareth-20
paraffin
triethanolamine
polyvinyl alcohol
phenoxyethanol
imidazolidinyl urea
methylparaben
propylene glycol
mica
titanium dioxide (cl77891)
感谢！ |
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x****h
发帖数: 300 | 45 NO Inhibition Effects During Oxidation of Propylene on Cu-Chabazite Catalyst
Richa Raj , Michael P. Harold *, and Vemuri Balakotaiah
Ind. Eng. Chem. Res., 2013, 52 (44), pp 15455–15465
Thanks a lot, |
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t***m
发帖数: 114 | 47 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 |
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c*s
发帖数: 2145 | 48 【 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****n
发帖数: 134 | 49 This criterion was listed in Quirk's book "Anionic polymerization",
but personally I don't think it is a good criterion.
Block copolymer may not be formed if you add propylene to living anionic
polystyrene...
block copolymer will be formed only when two monomer are similar in reactivity
in a specific polymerization (such as styrene and butadiene in anionic
polymerization). when the two monomers are quite different in reactivity, the
block copolymer may not be formed or there may be contaminatio |
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b**s
发帖数: 589 | 50 pluronic = poly(ethylene-propylene-ethylene oxide) (PEO-PPO-PEO)
My boss said yes, I said no. Who's wrong? |
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