高分子材料导论.ppt

Introduction to;Chapter 1 Struc;Study contents ;Structure diagr;Complexity of p;Primary structu;Chemical compos;Chemical compos;Such as PVC ( P;Polyvinyl Chlor;Polyhexamethyle;Polyphenylene o;Polyether ether;Poly(tetramethy;PPPECarbon chai;Heterochain pol;Element organic;Inorganic polym;Ladder polymers;Bonding Methods;For polydienes:;Head-to-tailHea;Branch and cros;无标题;CH3　　　　　　　　 ;Sequential stru;Random copolyme;Block copolymer;ConfigurationOp;Isotactic ;Geometric Isome;1.3??Long-rang ;1.3.1. Size of ;Molecular Weigh;无标题;Definition of s;4.Viscosity ave;For example:Tea;单分散性聚合物窄分布聚合物中等;?b ;Effect of Chain;All the above c;1.3.2. Conforma;无标题;For the ethane(;无标题;无标题;无标题;无标题;TTTT… 　　　 　;无标题;TGTG…or GGGG…，a;③ when R are sm;无标题;“C”atoms number;We know from th;We can know fro;I、分子链越长(包括碳链和杂链;1.3.3. Flexibil;Static state fl;?? / KT 1, th;lp：The persiste;When： lp = L = ;x is usually us;Dynamic state f;The frequency o;无标题;1.3.4. Factors ;CH2 109.5o ;CH2 108o ;CH2 113o NH ;CH2=== CH ;O ;For example: ;For example: ;In the case of ;—CH2—CH = CH—CH;If the backbone;－CH＝CH－CH＝CH－CH;(2) The effect ;For example: po;For example: Si;The flexibility;2, Influence of;1.4 Conformatio;How to describe;Branching Polym;Calculation of ;assumption：(1) ;无标题;The end-to-end ;Freely Rotating;Total n termsTo;=l2{n+2[(cos?+c;In the particul;Hindrance rotat;h2r.? h2f.r ;(i) The ;无标题;Pi(dx.dy.dz)oYZ;Position：　 ;Average end-to-;The mean square;The Freely Join;According to St;According to Ta;Replaced variab;The same;Random walk pro;无标题;无标题;If we only cons;无标题;W(h) ;The radial dist;Then, the mean ;The mean square;必须注意的是:1)前面这些结果;(2) The Equival;The max stretch;无标题;PE: ne and le c;1.4.3. Characte;Assuming the fr;The result obta;Comparing to th;A — non-disturb;C—limit charact;1.4.4. Gyration;h;The relationshi;1.4.5 Wormlike ;Porod and Kratk;无标题;Because of cos?;The length is r;The wormlike ch;For the wormlik;Relationship of;For