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高分子化学名词解释英文

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2021-02-19 01:02
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2021年2月19日发(作者:颁布英文)


高分子化合物(


High


Molecular


Compound


):



the


compound


which


many


atom


or


atom


group


mai


nly


conbined


by


covalent


bond


,relative


molecular


weight


is


above


10^4.


单体(


Monomer< /p>


):



The


raw


material


used


to


form


polymer.


重复单元(


Repeating


Unit


):



The


smallest


basic


unit


which


repeatedly


emergence


and


component


are


the


same


in


the


lagre


molecular


chain


of


polymer .


单体单元(


Monomer


Unit


):结构单元与原料相比,除了电子结构变化外,其原子种类和各种原子的个数


完全相同,这种结构单元又称为单体单元。




结构单元(


Structural


Unit


):



The


unit


monomers


formed


in


the


macromolecular


chain .

< p>
聚合度(


DP



X


n



(Degree


of


Polymerization)


the


average


number


of


repeating


unit


of


polymer


ma


cromolecular.


聚合物分子量(


Molecular


Weight


of


Polymer


):



The


molecular


weight


of repeating


units


multiplied


with


the


number of


repeating


units


数均分子量



(Number- average


Molecular


Weight)




Polymer molecules with


a


different numberaverag


e molecular


weight average


molecular


weight of statistics.


重均分子量(


Weight- average


Molecular


Weight


):



Using different


molecular


weight polymermolecula


r weight average


molecular


weight


ofthe


statistical average.


粘均分子量(


Viscosity-average


Molecular


Weight


):



Using


viscosity


method


to


measure


the


molecu


lar


weight


of


polymer.


分子量分布(


Molecular


Weight


Distribution,


MWD


):



Because different


molecular


weight polymersa


re


generally composed


of a


mixture


ofhomologues,


it has


a


certain molecular


weightdistribution,

多分散性(


Polydispersity


):

< p>


Used


to


express the


size


of the


polymermolecular


weight does


not equ


al more technical


terms is


called dispersion.


分布指数


(Distribution


Index)



The


ratio


of


Molecular


Weight


and


Number-average


Molecular


Weigh


t< /p>




Represent


Polydispersity


连锁聚合(


Chain


Polymerization


):



The


polymerization


that


active


center


initiate


monomer


,and


th


en


rapidly


chain


propagate.


逐步聚合(


Step


Polymerization


):



No


active


center,monomer


functional


groups


react


with


each


ot


her


to


chain


propagation.


加聚反应(


Addition


Polymerization


):



Vinyl


monomers


polymerize


by


addition.


缩聚反应(


Condensation


Polymerization


):


The


reaction


that


monomers


polymerize


to


get


macromo


lecular


by


repeated


condensation.

< p>
塑料(


Plastics


):


matrial


with


plastic


behavior.


The


so-called


plasticity


is


when


affected


by


externa


l


force,the


material


deforms,after


cancelling


the


force


,it


will


still


keep


the


forced


state .


橡胶(


Rubber


):



High


elastic


polymer


material


of


reversible


deformation.


纤维(


F iber


):



P


olymer by certain


mechanical processing


(traction, stretching, shaping,


etc.) to


for


m


a thin


and flexible filaments, the


formation


of


fibers.


热塑性聚合物(


Thermoplastics


Polymer


):



Macromolecule


polymer


formed


by


physic


force


,it


can


melt


when


heated,can


dissolve


in


appropriate


solvent .


热固性聚合物(


Thermosetting


Polymer


):



Many


linear


or


branching


macromolecules


form


cross-link


ed


shape


polymer


connected


by


chemical


bond .


碳链聚合物(


Carbon-chain


Polymer


):



Macromolecular main


chain composed entirely


of carbon


atom


s


in the


polymer



杂链聚合物(


Hetero-chain


Polymer


):



Macromolecular polymer main


chain in


addition


to carbon


ato


ms,


there


are oxygen, nitrogenand


other heteroatoms



元素有机聚合物



(Element


Organic


Polymer)




Macromolecular polymer main chain is


not


carbon,


ma


inly from


silicon, boron,


aluminum and


oxygen,


nitrogen,


sulfur and


phosphorus atoms.


无机高分子(


Inorganic


Polymer


):



There


was


no carbon


atoms


in


main chain


and side


chaincarbon



atoms of


the


polymer


聚合反应



(Polymerization)




Reaction


that


low


molecular


weight


monomer


synthetize


polymer.


第二章



自由基聚合


(Free-Radical


Polymerization)



活性种(


Reactive


Species


):



Material


that


reak


the


π



bond


of


monomers


,make


chain


initiation


an


d



can


be


free


radical


,or


cation


or


anion .


均裂



Homolysis

< p>




The


form


of


breaking


the


covalent


bond


,the


result


of


homolysis


is


,a


pair


of


electron


apart


belong


to


two


groups,each


group


has


one


independent


electron


which


appears


neut


ral.


异裂


(Heterolysis)




Compounds form covalent bond


cleavage, the


result


of different crack, covalent


bo


nd on a


pair


of


electrons all belong


to one group, this groupformed anion, while the other electron- def


icientgroup, known


as cations.


自由基聚合(


Radical


Polymerization


):



chain


polymerization


whose


active


center


of


is


free


radical .


离子聚合(


Ionic


Polymerization


):



chain


polymerization


whose


active


center


of


is


Anions


and


catio


ns.


阳离子聚合


(Cationic


Po lymerization)


:以阳离子作为活性中心的连锁聚合。


阴离子聚合


(Anionic


Polymerization)


:以阳离子作为活性中心的连锁聚合。



诱导效应


(Induction


Effect)




The


electrondonating


and


electronabsorptio


n


of


monomer


substitutes.


共轭效应


(Resonance


Effect)




Resonance


Effect


exists


in


the


Resonance


system,


it is


due


to orbit


i


nteraction arising


fromcross-conjugated


system covers each keyoccurs on


the average electron


densit


y of an


electronic effect.


空间位阻效应


(Steric


Effect)



the effect caused


by


the substituent size, number,


location,


the


ability o


f


itsmonomers have


significant impact


but it


does


not


involve the


choice of


the active


species.


链引发(


Chain


Initiation


):



Reaction


that


form


monomer


free


radical


active


species.


The


formation



of


primary


radicals


(l.e,decoposition


of


initiator


),the


formation


of


monomer


radicals.


链增长(


Chain


Propaga tion


):


After


free


radical


form,it


still


has


activity


to


open


the


second


vinyl


molecule



s


π



double


bond


,then


form


new


radical,


new free


radical activity does


not increase with


t


he decaychains, and other monomers molecules into


theunit's chain


of more free


radicals,


that chaingr


owth.


链终止(


Chain


Termination


):。


the


activity


of


free


radicals


are


high


,there


is


the


tendency


to


hav


e


interaction


to


terminate


and


lose


activity .reactions


that


loss


of


activity


to


form


a


stable


polymer



is


called


chain


termination reaction


偶合终止(


Coupling


Termination


):



Temination


reaction


that


Two


chain


free


radicals



independent


e


lectron


interact


to


form


covalent


bond .the


result


of


couping


termination


is


the


degree


of


polymeri


zation


of


macromolecular


is


twice


the


number


of


repeating


units.


歧化终止(


Disproportionation


Termination


):



Termination


reaction


that


one


chain


radical


rob


H


at


om


or


other


atom


of


anther


free


radical .


the


result


of


disproportionation


termination


is


the


degre


e


of


polymerization


of


macromolecular


is


the


same


as


the


number


of


repeating


units.


链转移


(Chain


Transfer)




In


the radical


polymerization process, chain


radicals


can


rob


atom


to


termi


nate


from


monomersolventinitiatorand


some


low


molecular


weight,making


the


molecular


which


lo


se


the


atom


become


the


new


radical,and


continue


new


chain


propagation


,this


reaction


is


called


c


haint


ransfer


引发剂


(Initi ator)




material


that


can


form


active


center


in


polymerazition


system


,making


monomer


s


connected


to


be


radicals.


半衰期(


Half


Life


):



the


time


needed


for


the


initiator


to


decompose


to


half


its


original


concentrat


ion


诱导期


Induction


period




the


early polymerization


primary free


radical terminated


by


inhibitor impuri


ties, no polymer formed during


the


polymerization


rate of


zero.


诱导分解(


Induced


Decomposition



induced


decomposition is


actually


that


free


radicals


transferred


with


the


initiator,which


leads


to


the


low


initiation


efficiency.


笼蔽效应(


Cage


Effect


):



The


initiator


concentration


is


very


low


in


polymerization


system,


so


the


primary


radicals


are


besieged


by


the


cage


of


solvent


molecules.


引发剂效率


(Initiator


Efficiency)



some polymerization initiator


accounter


for


initiator


decomposition fr


action of


total


consumption as the


initiator efficiency.


转化率


(Conversion)




Monomer into


the polymer fraction, equal


to the


monomer into


the polymer tha


n


the monomer tothe


total spent.


热引发聚合


(Thermal-Initiation


Polymerization)



聚合单体 中不加入引发剂,


单体只在热的作用下,


进行的


聚合称为热引发聚合。



光引发聚合


(Photo-Initiation


Polymerization)



polymerization


that


Monomer in


the


optical excitation (n


ot


to


join


theinitiator),


occur


polymerization


is


known


as light induced


polymerization.


光引发效率


(Photo-Initiation


Efficiency)




Also


known


as


the quantum


yield of


free


radicals, present


t


hat every absorbed photon producesa number of free


radicals.


辐射聚合


(Radiation


Polymerization) polymerization


of monomer


Caused by high


energy radiation


自动加速现象


(Auto-accelerative


Phenomena)




In


most


radical


polymerization


systems,


when


the


co


nversion


reaches


a


certain


value



15

%~


20


%),


autoacce leration


takes


celeration


is


m


ainly


caused


by


the


increase


of


the


system


viscosity



thus


autoacceleration


is


also


called


gel


effect.


动力学链长


(Kinetics


Chain


Length)




defined


as


the


average


number


of


monomer


molecules


consu


med


per


each


radical


which


initiates


a


polymer


chain.


链转移常数


(Chain


Transfer


Constant)


:是链转移速率常数和增长速率常数之比,代表链转移反应与链增


长反应的竞争能力。



链转移剂


(Chain


Transfer


Agent)


:< /p>


聚合物生产过程中人为地加入的一种自由基能够向其转移的试剂,


用于


调节聚合物分子量



阻聚剂(


Inhibitor


):能够使每一自由基都终止,形成非自由基物 质,或形成活性低、不足以再引发的自


由基的试剂,它能使聚合完全停止。



缓聚剂(


Retarder


):



reagents


Can


make some radical termination, slow


the


polymerization


自由基寿命


(Radical


Lifetime)




Refers


to


the


time


that


from


generated


to


the


termination


of


free


r


adicals



聚合上限温度


(Ceiling


Temperature


of


Po lymerization)



ΔG=0




the temperature


when


Polymerization


and


depolymerization in


equilibrium


is


the


maximum temperature


of polymerization


第三章



自由基共聚合


(Free-Radical


Co-polymerization)


均聚合(


Homo-polymerization

< p>
):由一种单体进行的聚合反应。




共聚合


(Co- polymerization)




Two


or


more monomers


joint


participation of chain polymerization.


均聚物


(Homo- polymer)



Polymer


formed


by


homo- polymerization.


共聚物


(Copolyme r)


:由共聚合形成的聚合物。



无规共聚物


(Random


Copolymer)




Polymer structural


unit


of the


polymer wascomposed


of random or

-


-


-


-


-


-


-


-



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